From 386bed49278ae55522175393cf8019ea97adde47 Mon Sep 17 00:00:00 2001 From: Tarun Kumar Dixit <43788843+tarun-sharma03@users.noreply.github.com> Date: Tue, 1 Oct 2019 01:19:26 +0530 Subject: [PATCH 01/21] Added new script --- Scripts/P14_ScriptToPlaySongs.py | 54 ++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 Scripts/P14_ScriptToPlaySongs.py diff --git a/Scripts/P14_ScriptToPlaySongs.py b/Scripts/P14_ScriptToPlaySongs.py new file mode 100644 index 0000000..147e417 --- /dev/null +++ b/Scripts/P14_ScriptToPlaySongs.py @@ -0,0 +1,54 @@ +# This program upon execution will take your command to play music randomly. +import pyttsx3 #pip install pyttsx3 +import speech_recognition as sr #pip install speech recognition +import os +import datetime +import random + +engine = pyttsx3.init('sapi5') +voices = engine.getProperty('voices') +engine.setProperty('voice',voices[0].id) #voices[1].id for female assistant + +#speak function to speak the string passed to it. +def speak(audio): + engine.say(audio) + engine.runAndWait() +#function to listen your command and process them +def takedata(): + r= sr.Recognizer() + with sr.Microphone() as source: + print("Listening....") + audio = r.listen(source) + try: + print("Recognizing...") + query = r.recognize_google(audio,language='en-in') #language set is Indian English + print("The user said ",query) + except Exception : + print("Sorry i was unable to catch that. Please try speaking that again.") + return 'None' + return query + +def wishme(): + hours = datetime.datetime.now().hour + + if hours>=0 and hours <12: + speak("good morning") + elif hours>=12 and hours <18: + speak("good afternoon") + else: + speak("good evening") + speak("sir i am your personal assistant. tell me how can i help you ") + +wishme() +query = takedata() +if 'play music' or 'play songs' in query: + music_dir = "F:\\Songs" #put the location of the folder where you store your songs + songs = os.listdir(music_dir) + l = len(songs) + num = random.randrange(0,l,1) + os.startfile(os.path.join(music_dir,songs[num])) + speak("Thank you for using my sevices. All improvements on my github repository are welcome.") + print("www.github.com/tarun-sharma03") + exit() +else: + speak("Query type not supported") \ No newline at end of file From 750ad1f311836583f1724e2de03b25c6d5a891c3 Mon Sep 17 00:00:00 2001 From: Abhishek Jha <44729252+abhishek-kehsihba@users.noreply.github.com> Date: Thu, 3 Oct 2019 19:44:22 +0530 Subject: [PATCH 02/21] Added problems in BIT Manipulation in Hackerearth section (#5) * Created P04_Mystery.py BIT MANIPULATION: Hackearth-Mystery * Created P05_HihiAndCrazyBits * Created P06_RajanAndOddFrequencyNumber.py * Created P07_SherlockAndXOR.py * Created P08_XorAndProject.py * Created P09_LuckyNumbers.py --- .../Bit_Manipulation/P04_Mystery.py | 44 +++++++++++++++++++ .../Bit_Manipulation/P05_HihiAndCrazyBits.py | 37 ++++++++++++++++ .../P06_RajanAndOddFrequencyNumber.py | 25 +++++++++++ .../Bit_Manipulation/P07_SherlockAndXOR.py | 36 +++++++++++++++ .../Bit_Manipulation/P08_XorAndProject.py | 42 ++++++++++++++++++ .../Bit_Manipulation/P09_LuckyNumbers.py | 44 +++++++++++++++++++ 6 files changed, 228 insertions(+) create mode 100644 CompetitiveProgramming/HackerEarth/Bit_Manipulation/P04_Mystery.py create mode 100644 CompetitiveProgramming/HackerEarth/Bit_Manipulation/P05_HihiAndCrazyBits.py create mode 100644 CompetitiveProgramming/HackerEarth/Bit_Manipulation/P06_RajanAndOddFrequencyNumber.py create mode 100644 CompetitiveProgramming/HackerEarth/Bit_Manipulation/P07_SherlockAndXOR.py create mode 100644 CompetitiveProgramming/HackerEarth/Bit_Manipulation/P08_XorAndProject.py create mode 100644 CompetitiveProgramming/HackerEarth/Bit_Manipulation/P09_LuckyNumbers.py diff --git a/CompetitiveProgramming/HackerEarth/Bit_Manipulation/P04_Mystery.py b/CompetitiveProgramming/HackerEarth/Bit_Manipulation/P04_Mystery.py new file mode 100644 index 0000000..4f3735d --- /dev/null +++ b/CompetitiveProgramming/HackerEarth/Bit_Manipulation/P04_Mystery.py @@ -0,0 +1,44 @@ +# In the world of dragon ball, Goku has been the greatest rival of Vegeta. Vegeta wants to surpass goku but never succeeds. Now that he +# knows he cant beat goku in physical strength, he wants to be satisfied by beating goku in mental strength. He gives certain inputs and +# outputs , Goku needs to find the logic and predict the output for the next inputs. Goku is struggling with the challenge, your task is +# to find the logic and and help him win the challenge. + +# INPUT : + +# Given a series of numbers(inputs) and each number(N) on a newline. + +# OUTPUT : + +# For the given input , Output the required ans. + +# NOTE : + +# No. of test cases are unknown. + +# Use Faster I/O Techniques. + +# CONSTRAINTS : + +# 0<= N <= 10^18 + +# SAMPLE INPUT +# 0 +# 1 +# 5 +# 12 +# 22 +# 1424 +# SAMPLE OUTPUT +# 0 +# 1 +# 2 +# 2 +# 3 +# 4 + +while(1): + try: + r=bin(int(input())) + print(r.count('1')) + except: + break diff --git a/CompetitiveProgramming/HackerEarth/Bit_Manipulation/P05_HihiAndCrazyBits.py b/CompetitiveProgramming/HackerEarth/Bit_Manipulation/P05_HihiAndCrazyBits.py new file mode 100644 index 0000000..39f7340 --- /dev/null +++ b/CompetitiveProgramming/HackerEarth/Bit_Manipulation/P05_HihiAndCrazyBits.py @@ -0,0 +1,37 @@ +# Hihi is the grandfather of all geeks in IIITA. He and his crazy ideas.....Huh..... Currently, hihi is working on his most famous project +# named 21 Lane, but he is stuck at a tricky segment of his code. + +# Hihi wants to assign some random IP addresses to users, but he won't use rand(). He wants to change the current IP of the user's computer +# to the IP such that its hash is next hash greater than the hash of original IP and differs by only 1 bit from the hash of original IP. + +# Smart Hihi already hashed the IP to some integer using his personal hash function. What he wants from you is to convert the given hashed +# IP to the required IP X as mentioned above. + +# OK, just find the find the smallest number greater than n with exactly 1 bit different from n in binary form + +# Input : + +# First line contains single integer T ( 1 <= T <= 10^6)- number of test cases. Second line contains hashed IP N ( 1 <= N <= 10^18) + +# Output : + +# Print T lines, each containing an integer X, the required IP.(don't worry Hihi will decode X to obtain final IP address) + +# SAMPLE INPUT +# 5 +# 6 +# 4 +# 10 +# 12 +# 14 +# SAMPLE OUTPUT +# 7 +# 5 +# 11 +# 13 +# 15 + + +for _ in range(int(input())): + a=int(input()) + print(a|a+1) diff --git a/CompetitiveProgramming/HackerEarth/Bit_Manipulation/P06_RajanAndOddFrequencyNumber.py b/CompetitiveProgramming/HackerEarth/Bit_Manipulation/P06_RajanAndOddFrequencyNumber.py new file mode 100644 index 0000000..924380a --- /dev/null +++ b/CompetitiveProgramming/HackerEarth/Bit_Manipulation/P06_RajanAndOddFrequencyNumber.py @@ -0,0 +1,25 @@ +# Given an array of numbers of size (2*n+1).Raja is unable to find the number which is present odd number of times.It is guaranteed that only one such number exists.Can you help Raja in finding the number which is present odd number of times? + +# Input +# First line contains value of n. +# Second line contains (2*n+1) array elements. +# Output +# Print the required number. +# Constraints +# 1≤ n ≤ +# 1≤ a[i] ≤ + +# SAMPLE INPUT +# 2 +# 1 2 3 2 1 +# SAMPLE OUTPUT +# 3 +# Explanation +# For first input only 3 is the number which is present odd number of times. + +a=int(input()) +b=list(map(int,input().split())) +d=b[0] +for i in range(1,len(b)): + d=d^b[i] +print(d) diff --git a/CompetitiveProgramming/HackerEarth/Bit_Manipulation/P07_SherlockAndXOR.py b/CompetitiveProgramming/HackerEarth/Bit_Manipulation/P07_SherlockAndXOR.py new file mode 100644 index 0000000..56f5d4d --- /dev/null +++ b/CompetitiveProgramming/HackerEarth/Bit_Manipulation/P07_SherlockAndXOR.py @@ -0,0 +1,36 @@ +# You are given an array A1,A2...AN. You have to tell how many pairs (i, j) exist such that 1 ≤ i < j ≤ N and Ai XOR Aj is odd. + +# Input and Output +# First line T, the number of testcases. Each testcase: first line N, followed by N integers in next line. For each testcase, print the +# required answer in one line. + +# Constraints +# 1 ≤ T ≤ 10 +# 1 ≤ N ≤ 105 +# 0 ≤ Ai ≤ 109 + +# SAMPLE INPUT +# 2 +# 3 +# 1 2 3 +# 4 +# 1 2 3 4 +# SAMPLE OUTPUT +# 2 +# 4 +# Explanation +# For first testcase: 1 XOR 2 is 3 and 2 XOR 3 is 1. So, 2 valid pairs. For second testcase: 1 XOR 2 is 3 and 2 XOR 3 is 1 and 1 XOR 4 is 5 +# and 3 XOR 4 is 7. So, 4 valid pairs. + +for _ in range (int(input())): + a=int(input()) + b=list(map(int,input().split())) + ans=0 + a2=0 + for i in range(0,a): + if(b[i]&1): + ans+=1 + else: + a2+=1 + + print(ans*a2) diff --git a/CompetitiveProgramming/HackerEarth/Bit_Manipulation/P08_XorAndProject.py b/CompetitiveProgramming/HackerEarth/Bit_Manipulation/P08_XorAndProject.py new file mode 100644 index 0000000..bbecdba --- /dev/null +++ b/CompetitiveProgramming/HackerEarth/Bit_Manipulation/P08_XorAndProject.py @@ -0,0 +1,42 @@ +# A project was going on related to image processing and to perform experiments and get desired result the image needs to be converted to +# Gray-Scale using a parameter 'x' and the function P(x) represented the Gray-Code and calculated via x xor (x div 2) where xor stands for +# bitwise exclusive OR (bitwise modulo 2 addition), and div means integer division. + +# It is interesting to note that function P(x) is invertible, which means it is always possible to uniquely restore x given the value of +# P(x). + +# So the group working on the project forgot to keep the original data related to parameter 'x'. Write a program to restore number x from +# the given value of P(x). + +# INPUT: +# The input file contains an integer number y, the value of G(x). + +# OUTPUT: +# The output file should contain a single integer x such that G(x) = y. + +# CONSTRAINTS: +# 0 ≤ x,P(x) ≤ . + +# SAMPLE INPUT +# 15 +# SAMPLE OUTPUT +# 10 + +a=int(input()) +a=bin(a).replace("0b","") +c=[int(i) for i in str(a)] +d=[] +e=c[0] +for i in range(0,len(a)): + if(i==0): + d.append(c[i]) + else: + f=c[i]^e + d.append(f) + e=f +e=1 +g=0 +for i in range(0,len(a)): + g=g+d[len(a)-i-1]*e + e=e*2 +print(g) diff --git a/CompetitiveProgramming/HackerEarth/Bit_Manipulation/P09_LuckyNumbers.py b/CompetitiveProgramming/HackerEarth/Bit_Manipulation/P09_LuckyNumbers.py new file mode 100644 index 0000000..20378c2 --- /dev/null +++ b/CompetitiveProgramming/HackerEarth/Bit_Manipulation/P09_LuckyNumbers.py @@ -0,0 +1,44 @@ +# Golu wants to find out the sum of Lucky numbers.Lucky numbers are those numbers which contain exactly two set bits.This task is very +# diffcult for him.So Help Golu to find sum of those numbers which exactly contain two set bits upto a given number N. + +# 3 5 10 are lucky numbers where 7 14 are not. + +# INPUT +# First line contain number of test cases T.Each test case contains a single number N. +# OUTPUT +# Print sum of all Lucky Numbers upto N.Output may be large so take modulo with 1000000007. + +# Constraints +# 1<=T<=105 +# 1<=N<=1018 + +# NOTE: Since value of test cases and n is really large, please use fast I/O optimization techniques. + +# SAMPLE INPUT +# 1 +# 5 +# SAMPLE OUTPUT +# 8 + +import collections +for _ in range(int(input())): + + sum = 0 + mod = 1000000007 + n = int(input()) + j = bin(n) + bl = len(j) - 2 + + + while bl > 0: + lo = bl - 2 + + while lo >= 0: + i = '1' + ('0' * lo) + ('1' ) + ('0' * (bl - lo - 2)) + + if int(i,2) <= n : + sum = (sum + int(i,2)) + lo -= 1 + + bl -= 1 + print(sum % mod) From a118f4a28423ba1182608da62ca3b31f1cde426c Mon Sep 17 00:00:00 2001 From: Avinash Kumar Jha <41112044+avinashjha11@users.noreply.github.com> Date: Sun, 6 Oct 2019 21:33:49 +0530 Subject: [PATCH 03/21] Added problems in SPOJ section. (#6) * SPOJ Problems * SPOJ Problems * SPOJ Problems --- CompetitiveProgramming/SPOJ/P13_AVRG.py | 5 +++++ CompetitiveProgramming/SPOJ/P14_MUL.py | 5 +++++ CompetitiveProgramming/SPOJ/P15_PRADIPSUM.py | 19 +++++++++++++++++++ 3 files changed, 29 insertions(+) create mode 100644 CompetitiveProgramming/SPOJ/P13_AVRG.py create mode 100644 CompetitiveProgramming/SPOJ/P14_MUL.py create mode 100644 CompetitiveProgramming/SPOJ/P15_PRADIPSUM.py diff --git a/CompetitiveProgramming/SPOJ/P13_AVRG.py b/CompetitiveProgramming/SPOJ/P13_AVRG.py new file mode 100644 index 0000000..1c4f21c --- /dev/null +++ b/CompetitiveProgramming/SPOJ/P13_AVRG.py @@ -0,0 +1,5 @@ +sum=0 +for i in range (0,6): + a=int(input()) + sum+=a +print(sum/6) diff --git a/CompetitiveProgramming/SPOJ/P14_MUL.py b/CompetitiveProgramming/SPOJ/P14_MUL.py new file mode 100644 index 0000000..e114106 --- /dev/null +++ b/CompetitiveProgramming/SPOJ/P14_MUL.py @@ -0,0 +1,5 @@ +t = int(input()) +while t>0: + t-=1 + n1, n2 = map(int, raw_input().split()) + print n1*n2 diff --git a/CompetitiveProgramming/SPOJ/P15_PRADIPSUM.py b/CompetitiveProgramming/SPOJ/P15_PRADIPSUM.py new file mode 100644 index 0000000..a4b78da --- /dev/null +++ b/CompetitiveProgramming/SPOJ/P15_PRADIPSUM.py @@ -0,0 +1,19 @@ +def sum(x): + if x < 0: + return -(-x * (-x + 1) // 2) + else: + return x * (x + 1) // 2 + +while True: + try: + a, b = map(int, input().split()) + if a > b: + a, b = b, a + if b < 0: + print(sum(a) - sum(b + 1)) + elif a <= 0: + print(sum(b) + sum(a)) + else: + print(sum(b) - sum(a - 1)) + except EOFError: + exit(0) From 8906b98bb7a0770b2c5faf42fac90f84742dfadd Mon Sep 17 00:00:00 2001 From: Pulkit-100 <40335208+Pulkit-100@users.noreply.github.com> Date: Sun, 6 Oct 2019 21:34:27 +0530 Subject: [PATCH 04/21] Added Magic Methods (#7) --- OOP/P11_MagicMethods.py | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/OOP/P11_MagicMethods.py b/OOP/P11_MagicMethods.py index caebf85..751b7db 100644 --- a/OOP/P11_MagicMethods.py +++ b/OOP/P11_MagicMethods.py @@ -13,6 +13,14 @@ def __init__(self, firstname, lastname, salary = 0): def __str__(self): return 'Full Name: ' + self.firstname + ' ' + self.lastname + # Implements behaviour for built in type comparison to int + def __int__(self): + return self.salary + + # For overloading the (==) + def __eq__(self,other): + return self.salary==other.salary + # For overloading the (+) def __add__(self, other): return self.salary + other.salary @@ -28,3 +36,6 @@ def __mul__(self, other): print(Jagdish) # Full Name: Jagdish Pathak print(Omkar + Jagdish) # 3000 (This output because of __add__ method overloading) print(Omkar * Jagdish) # 2000000 (__mul__) + print(int(Omkar)) # 1000 (__int__) + print(int(Jagdish)) # 2000 (__int__) + print(Omkar==Jagdish) From 3e41fbe9d5d9c0314cc9a7d92fb353540e09a23e Mon Sep 17 00:00:00 2001 From: AthaSSiN <56124496+AthaSSiN@users.noreply.github.com> Date: Fri, 11 Oct 2019 20:41:48 +0530 Subject: [PATCH 05/21] Added an efficient method to find primes (#8) --- .../HackerEarth/Basics_Of_Input_Output/P04_PrimeNumber.py | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/CompetitiveProgramming/HackerEarth/Basics_Of_Input_Output/P04_PrimeNumber.py b/CompetitiveProgramming/HackerEarth/Basics_Of_Input_Output/P04_PrimeNumber.py index 28d4de9..050e516 100644 --- a/CompetitiveProgramming/HackerEarth/Basics_Of_Input_Output/P04_PrimeNumber.py +++ b/CompetitiveProgramming/HackerEarth/Basics_Of_Input_Output/P04_PrimeNumber.py @@ -12,10 +12,12 @@ # Constraints # 1 <= N <=1000 +import math + userInput = int(input()) -for i in range(2, userInput): +for i in range(2, userInput + 1): check = 0 - for j in range(2, i): + for j in range(2, int(math.sqrt(i))+ 1): if i % j == 0: check = 1 break From 38f7b664a356d64b3e19acbf73ef39c0ee6a9609 Mon Sep 17 00:00:00 2001 From: Subrhamanya <36793516+Subrhamanya@users.noreply.github.com> Date: Tue, 15 Oct 2019 20:38:34 +0530 Subject: [PATCH 06/21] Efficient program to check given number is a perfect square of 2 (#12) --- .../Algorithms/logics/perfectsquareof2.py | 12 ++++++++++++ 1 file changed, 12 insertions(+) create mode 100644 CompetitiveProgramming/HackerEarth/Algorithms/logics/perfectsquareof2.py diff --git a/CompetitiveProgramming/HackerEarth/Algorithms/logics/perfectsquareof2.py b/CompetitiveProgramming/HackerEarth/Algorithms/logics/perfectsquareof2.py new file mode 100644 index 0000000..87b79a9 --- /dev/null +++ b/CompetitiveProgramming/HackerEarth/Algorithms/logics/perfectsquareof2.py @@ -0,0 +1,12 @@ +# Efficient Python program to check entered number is a perfect square of 2 or not +# Example +# 8 +# Its a perfect square of 2 + + + +n = int(input("Enter a number")) +if n & (n - 1) == 0: + print("Its a perfect square of 2") +else: + print("Its not perfect square") From 377cf550531c86bae88a2e3805c6db2b063fd5d9 Mon Sep 17 00:00:00 2001 From: namangup <32638824+namangup@users.noreply.github.com> Date: Wed, 16 Oct 2019 08:59:31 +0530 Subject: [PATCH 07/21] Modified the algorithm to take half of the previous time (#13) --- .../HackerEarth/Basics_Of_Input_Output/P04_PrimeNumber.py | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/CompetitiveProgramming/HackerEarth/Basics_Of_Input_Output/P04_PrimeNumber.py b/CompetitiveProgramming/HackerEarth/Basics_Of_Input_Output/P04_PrimeNumber.py index 050e516..c491dfd 100644 --- a/CompetitiveProgramming/HackerEarth/Basics_Of_Input_Output/P04_PrimeNumber.py +++ b/CompetitiveProgramming/HackerEarth/Basics_Of_Input_Output/P04_PrimeNumber.py @@ -15,7 +15,9 @@ import math userInput = int(input()) -for i in range(2, userInput + 1): +if userInput>2 + print("2",end = ' ') +for i in range(3, userInput + 2): check = 0 for j in range(2, int(math.sqrt(i))+ 1): if i % j == 0: From 0c09f366f9d652d0c2dd83dc07006eb5f2e806e0 Mon Sep 17 00:00:00 2001 From: Sudhi Mohan Date: Sat, 26 Oct 2019 09:49:53 +0530 Subject: [PATCH 08/21] Added machine learning program (#15) * created folder machine learning * Added gradient descent program * Delete file1 --- MachineLearning/gradient_descent.py | 102 ++++++++++++++++++++++++++ MachineLearning/readme.txt | 30 ++++++++ MachineLearning/version_list.txt | 109 ++++++++++++++++++++++++++++ 3 files changed, 241 insertions(+) create mode 100644 MachineLearning/gradient_descent.py create mode 100644 MachineLearning/readme.txt create mode 100644 MachineLearning/version_list.txt diff --git a/MachineLearning/gradient_descent.py b/MachineLearning/gradient_descent.py new file mode 100644 index 0000000..6c89d92 --- /dev/null +++ b/MachineLearning/gradient_descent.py @@ -0,0 +1,102 @@ +#################################################################################### +## PROBLEM1: Gradient Descent +## Gradient descent is a popular optimization technique to solve many +## machine learning problems. In this case, we will explore the gradient +## descent algorithm to fit a line for the given set of 2-D points. +## ref: https://tinyurl.com/yc4jbjzs +## ref: https://spin.atomicobject.com/2014/06/24/gradient-descent-linear-regression/ +## +## +## input: directory of faces in ./data/1_points.csv/ +## function for reading points is provided +## +## +## your task: fill the following functions: +## evaluate_cost +## evaluate_gradient +## udpate_params +## NOTE: do NOT change values of 'init_params' and 'max_iterations' in optimizer +## +## +## output: cost after convergence (rmse, lower the better) +## +## +## NOTE: all required modules are imported. DO NOT import new modules. +## NOTE: references are given intline +## tested on Ubuntu14.04, 22Oct2017, Abhilash Srikantha +#################################################################################### + +import numpy as np +import matplotlib.pyplot as plt +import time + +def load_data(fname): + points = np.loadtxt(fname, delimiter=',') + y_ = points[:,1] + # append '1' to account for the intercept + x_ = np.ones([len(y_),2]) + x_[:,0] = points[:,0] + # display plot + #plt.plot(x_[:,0], y_, 'ro') + #plt.xlabel('x-axis') + #plt.ylabel('y-axis') + #plt.show() + print('data loaded. x:{} y:{}'.format(x_.shape, y_.shape)) + return x_, y_ + +def evaluate_cost(x_,y_,params): + tempcost = 0 + for i in range(len(y_)): + tempcost += (y_[i] - ((params[0] * x_[i,0]) + params[1])) ** 2 + return tempcost / float(10000) + +def evaluate_gradient(x_,y_,params): + m_gradient = 0 + b_gradient = 0 + N = float(len(y_)) + for i in range(len(y_)): + m_gradient += -(2/N) * (x_[i,0] * (y_[i] - ((params[0] * x_[i,0]) + params[1]))) + b_gradient += -(2/N) * (y_[i] - ((params[0] * x_[i,0]) + params[1])) + return [m_gradient,b_gradient] + +def update_params(old_params, grad, alpha): + new_m = old_params[0] - (alpha * grad[0]) + new_b = old_params[1] - (alpha * grad[1]) + return [new_m,new_b] + +# initialize the optimizer +optimizer = {'init_params':np.array([4.5,2.0]) , + 'max_iterations':10000, + 'alpha':0.69908, + 'eps':0.0000001, + 'inf':1e10} + +# load data +x_, y_ = load_data("./data/1_points.csv") + +# time stamp +start = time.time() + +try: + # gradient descent + params = optimizer['init_params'] + old_cost = 1e10 + for iter_ in range(optimizer['max_iterations']): + # evaluate cost and gradient + cost = evaluate_cost(x_,y_,params) + grad = evaluate_gradient(x_,y_,params) + # display + if(iter_ % 10 == 0): + print('iter: {} cost: {} params: {}'.format(iter_, cost, params)) + # check convergence + if(abs(old_cost - cost) < optimizer['eps']): + break + # udpate parameters + params = update_params(params,grad,optimizer['alpha']) + old_cost = cost +except: + cost = optimizer['inf'] + +# final output +print('time elapsed: {}'.format(time.time() - start)) +print('cost at convergence: {} (lower the better)'.format(cost)) diff --git a/MachineLearning/readme.txt b/MachineLearning/readme.txt new file mode 100644 index 0000000..590f033 --- /dev/null +++ b/MachineLearning/readme.txt @@ -0,0 +1,30 @@ +The assignment consists of three problems based on basic machine learning and computer vision. +Numerous problems in these areas are well studied in statistics and applied mathematics. +Solutions are to be implemented in python by filling out required functions in each python file. +A basic framework for data i/o and evaluation is already provided (see header comments in each python file). +Please note that all required libraries are already imported so please DO NOT import anything new. + +The four problems are briefly discussed below. + +1. Gradient Descent: This is a popular optimization problem to find solutions to differentiable equations. +Typically, learning problems involve minimizing a cost function by appropriately setting model parameters. +In this task, we are given a set of (noisy) points on a line and we wish to retrieve model parameters (intercept and slope) through gradient descent. +Please refer to 'gradient_descent.py' and inline comments for further details. + +2. Eigenfaces: This is a popular application of learning a basis representation of input data. +The application of this technique is the basis for simple recognition/compression algorithms. +In this task, we want to learn orthonormal basis using PCA of images that correspond to faces. +Please refer to 'eigenfaces.py' and inline comments for further details. + +3. Classification: This is among the basic tasks of machine learning problems. +Here, we will learn a classifier to using groundtruth labels on the training data to be able to distinguish between two object classes. +You will use the scikit library to learn two classifiers (svm and random forest). +Feel free to explore the parameters of both models to maximize classifier performance. +Please refer to 'classification.py' and inline comments for further details. + +4. Disparity map: This is among the basic tasks of 3D computer vision +Here, given two differnce perspectives of the same scene, we will reconstruct an approximate of the depth map. +This is called the disparity map (higher disparity is similar to lower depth). +You will use the scikit library to implement the module. Feel free to explore the parameters 'downsample' and 'patchsize' +Please refer to disparity.py and inline comments for further details. + diff --git a/MachineLearning/version_list.txt b/MachineLearning/version_list.txt new file mode 100644 index 0000000..146455c --- /dev/null +++ b/MachineLearning/version_list.txt @@ -0,0 +1,109 @@ +alabaster==0.7.10 +angles==1.9.11 +astroid==1.5.3 +Babel==2.5.0 +backports.weakref==1.0rc1 +bleach==1.5.0 +chardet==3.0.4 +configparser==3.5.0 +cycler==0.10.0 +decorator==4.1.2 +docutils==0.14 +entrypoints==0.2.3 +html5lib==0.9999999 +imagesize==0.7.1 +imutils==0.4.3 +ipykernel==4.6.1 +ipython==6.1.0 +ipython-genutils==0.2.0 +ipywidgets==6.0.0 +isort==4.2.15 +jedi==0.10.2 +Jinja2==2.9.6 +jsonschema==2.6.0 +jupyter==1.0.0 +jupyter-client==5.1.0 +jupyter-console==5.2.0 +jupyter-core==4.3.0 +lazy-object-proxy==1.3.1 +lxml==3.8.0 +Mako==1.0.6 +Markdown==2.6.9 +MarkupSafe==1.0 +matplotlib==2.0.2 +mistune==0.7.4 +mock==2.0.0 +mpmath==0.19 +nbconvert==5.2.1 +nbformat==4.4.0 +networkx==1.11 +nose==1.3.7 +notebook==5.0.0 +numpy==1.13.1 +numpydoc==0.7.0 +olefile==0.44 +opencv==1.0.1 +pandas==0.20.3 +pandocfilters==1.4.2 +pbr==3.1.1 +pexpect==4.2.1 +pickleshare==0.7.4 +Pillow==3.4.2 +prompt-toolkit==1.0.15 +protobuf==3.4.0 +psutil==5.2.2 +ptyprocess==0.5.2 +pycodestyle==2.3.1 +pyflakes==1.6.0 +Pygments==2.2.0 +pygpu==0.6.9 +pylint==1.7.2 +pyparsing==2.2.0 +python-dateutil==2.6.1 +python-qt-binding==0.2.19 +pytz==2017.2 +PyWavelets==0.5.2 +pyzmq==16.0.2 +qt-dotgraph==0.2.32 +qt-gui==0.2.32 +qt-gui-py-common==0.2.32 +QtAwesome==0.4.4 +qtconsole==4.3.1 +QtPy==1.3.1 +requests==2.14.2 +rope-py3k==0.9.4.post1 +rosboost-cfg==1.11.14 +rosclean==1.11.14 +roscreate==1.11.14 +rosgraph==1.11.21 +roslint==0.10.0 +roslz4==1.11.21 +rosmaster==1.11.21 +rosparam==1.11.21 +scikit-image==0.13.0 +scikit-learn==0.19.0 +scipy==0.19.1 +simplegeneric==0.8.1 +singledispatch==3.4.0.3 +six==1.10.0 +sklearn-theano==0.0.1 +smach==2.0.1 +smclib==1.7.19 +snowballstemmer==1.2.1 +Sphinx==1.6.3 +sphinxcontrib-websupport==1.0.1 +spyder==3.2.3 +sympy==1.1.1 +tensorflow==1.3.0 +tensorflow-tensorboard==0.1.5 +terminado==0.6 +testpath==0.3 +Theano==0.9.0 +tornado==4.5.2 +traitlets==4.3.2 +wcwidth==0.1.7 +webencodings==0.5 +Werkzeug==0.12.2 +widgetsnbextension==3.0.1 +wrapt==1.10.11 +xdot==2.0.1 From be26cc5c5c00b30160f390533fc633ca5d7c45c3 Mon Sep 17 00:00:00 2001 From: Omkar Pathak Date: Tue, 5 Nov 2019 11:27:24 +0530 Subject: [PATCH 09/21] Added github actions --- .github/workflows/pythonapp.yml | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 .github/workflows/pythonapp.yml diff --git a/.github/workflows/pythonapp.yml b/.github/workflows/pythonapp.yml new file mode 100644 index 0000000..52a8b87 --- /dev/null +++ b/.github/workflows/pythonapp.yml @@ -0,0 +1,29 @@ +name: Python application + +on: [push, pull_request] +jobs: + build: + + runs-on: ubuntu-latest + + steps: + - uses: actions/checkout@v1 + - name: Set up Python 3.7 + uses: actions/setup-python@v1 + with: + python-version: 3.7 + - name: Install dependencies + run: | + python -m pip install --upgrade pip + pip install -r requirements.txt + - name: Lint with flake8 + run: | + pip install flake8 + # stop the build if there are Python syntax errors or undefined names + flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics + # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide + flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics + - name: Test with pytest + run: | + pip install pytest + pytest From aadc4546d4d22e47c105815f80095ca3b251dc7e Mon Sep 17 00:00:00 2001 From: Omkar Pathak Date: Tue, 5 Nov 2019 11:28:24 +0530 Subject: [PATCH 10/21] Update pythonapp.yml --- .github/workflows/pythonapp.yml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/.github/workflows/pythonapp.yml b/.github/workflows/pythonapp.yml index 52a8b87..d01da42 100644 --- a/.github/workflows/pythonapp.yml +++ b/.github/workflows/pythonapp.yml @@ -15,7 +15,7 @@ jobs: - name: Install dependencies run: | python -m pip install --upgrade pip - pip install -r requirements.txt + # pip install -r requirements.txt - name: Lint with flake8 run: | pip install flake8 From d20faf6c77a8c94fe414655b6f306ea508e09cf6 Mon Sep 17 00:00:00 2001 From: Omkar Pathak Date: Tue, 5 Nov 2019 11:36:01 +0530 Subject: [PATCH 11/21] Fixed syntax changes --- CompetitiveProgramming/CodeChef/P36_SUBGCD.py | 12 ++++++------ .../Basics_Of_Input_Output/P04_PrimeNumber.py | 2 +- .../HackerEarth/DataStructures/Arrays/P11_JumpOut.py | 2 +- CompetitiveProgramming/SPOJ/P14_MUL.py | 4 ++-- Programs/P40_CipherText.py | 4 ---- Programs/P56_Pangram.py | 2 +- 6 files changed, 11 insertions(+), 15 deletions(-) diff --git a/CompetitiveProgramming/CodeChef/P36_SUBGCD.py b/CompetitiveProgramming/CodeChef/P36_SUBGCD.py index a4d503a..5087b84 100644 --- a/CompetitiveProgramming/CodeChef/P36_SUBGCD.py +++ b/CompetitiveProgramming/CodeChef/P36_SUBGCD.py @@ -60,11 +60,11 @@ def gcd(firstNumber, secondNumber): flag = 0 size = 0 for i in array: - currentGCD = gcd(i, currentGCD) - if currentGCD == 1: - flag = 1 - print(count) - break + currentGCD = gcd(i, currentGCD) + if currentGCD == 1: + flag = 1 + print(count) + break if flag == 0: - print(-1) + print(-1) \ No newline at end of file diff --git a/CompetitiveProgramming/HackerEarth/Basics_Of_Input_Output/P04_PrimeNumber.py b/CompetitiveProgramming/HackerEarth/Basics_Of_Input_Output/P04_PrimeNumber.py index c491dfd..9fa2418 100644 --- a/CompetitiveProgramming/HackerEarth/Basics_Of_Input_Output/P04_PrimeNumber.py +++ b/CompetitiveProgramming/HackerEarth/Basics_Of_Input_Output/P04_PrimeNumber.py @@ -15,7 +15,7 @@ import math userInput = int(input()) -if userInput>2 +if userInput > 2: print("2",end = ' ') for i in range(3, userInput + 2): check = 0 diff --git a/CompetitiveProgramming/HackerEarth/DataStructures/Arrays/P11_JumpOut.py b/CompetitiveProgramming/HackerEarth/DataStructures/Arrays/P11_JumpOut.py index 4da7dc1..acda653 100644 --- a/CompetitiveProgramming/HackerEarth/DataStructures/Arrays/P11_JumpOut.py +++ b/CompetitiveProgramming/HackerEarth/DataStructures/Arrays/P11_JumpOut.py @@ -27,7 +27,7 @@ array = input().split() array = [int(i) for i in array] array.insert(0,0) -count = +count = 0 for i in range(0, check + 1): pos = array[i] + i if pos > check: diff --git a/CompetitiveProgramming/SPOJ/P14_MUL.py b/CompetitiveProgramming/SPOJ/P14_MUL.py index e114106..735e492 100644 --- a/CompetitiveProgramming/SPOJ/P14_MUL.py +++ b/CompetitiveProgramming/SPOJ/P14_MUL.py @@ -1,5 +1,5 @@ t = int(input()) while t>0: t-=1 - n1, n2 = map(int, raw_input().split()) - print n1*n2 + n1, n2 = map(int, input().split()) + print(n1*n2) diff --git a/Programs/P40_CipherText.py b/Programs/P40_CipherText.py index af4b2c1..3733f43 100644 --- a/Programs/P40_CipherText.py +++ b/Programs/P40_CipherText.py @@ -12,8 +12,6 @@ def encrypt(message, key): num = LETTERS.find(chars) num += key encrypted += LETTERS[num] - else: - encrypted += symbol return encrypted @@ -25,8 +23,6 @@ def decrypt(message, key): num = LETTERS.find(chars) num -= key decrypted += LETTERS[num] - else: - decrypted += symbol return decrypted diff --git a/Programs/P56_Pangram.py b/Programs/P56_Pangram.py index 2e6ff3c..be2f31d 100644 --- a/Programs/P56_Pangram.py +++ b/Programs/P56_Pangram.py @@ -24,7 +24,7 @@ def pangram(sentence): # A short version of above function: def pangram2(sentence): alphabet = list(map(chr, range(97, 123))) - formattedString = ''.join(c for c in string if c.isalpha()).lower() + formattedString = ''.join(c for c in sentence if c.isalpha()).lower() return set(alphabet) == set(formattedString) if __name__ == '__main__': From 1cf984af807c090154556fdf023d8c13ef33b3f2 Mon Sep 17 00:00:00 2001 From: Omkar Pathak Date: Tue, 5 Nov 2019 11:38:11 +0530 Subject: [PATCH 12/21] Update pythonapp.yml --- .github/workflows/pythonapp.yml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/.github/workflows/pythonapp.yml b/.github/workflows/pythonapp.yml index d01da42..63612d1 100644 --- a/.github/workflows/pythonapp.yml +++ b/.github/workflows/pythonapp.yml @@ -26,4 +26,4 @@ jobs: - name: Test with pytest run: | pip install pytest - pytest + # pytest From 53f95064ee2302c9f2f26c01192e7e4a1e3e0ef1 Mon Sep 17 00:00:00 2001 From: Hanif Ali Date: Sun, 10 Nov 2019 07:25:12 +0500 Subject: [PATCH 13/21] Added Pretty Printing feature to Binary Tree Programs (#17) * Added some more functions to BinarySearchTree. -> Defining intial elements of newly created Trees -> Prettyprinting trees with left-right order and * representing null nodes. * Added pretty print to BinaryTree.py * Fixed flake8 Linting --- Programs/P43_BinarySearchTree.py | 23 ++++++++++++++++++++++- Programs/P62_BinaryTree.py | 21 +++++++++++++++++++++ 2 files changed, 43 insertions(+), 1 deletion(-) diff --git a/Programs/P43_BinarySearchTree.py b/Programs/P43_BinarySearchTree.py index d82b433..eac303f 100644 --- a/Programs/P43_BinarySearchTree.py +++ b/Programs/P43_BinarySearchTree.py @@ -72,9 +72,13 @@ def postorder(self): print(str(self.data), end = ' ') class Tree(object): - def __init__(self): + def __init__(self, initial_data = []): self.root = None + # If provided, add initial data + for data in initial_data: + self.insert(data) + def insert(self, data): if self.root: return self.root.insert(data) @@ -106,6 +110,22 @@ def postorder(self): print('Postorder: ') self.root.postorder() + + def pprint(self, head_node=0, _pre="", _last=True, term=False): + + head_node = self.root if head_node == 0 else head_node + + data = "*" if head_node is None else head_node.data + + print(_pre, "`- " if _last else "|- ", data, sep="") + _pre += " " if _last else "| " + + if term: return + + for i, child in enumerate([head_node.leftChild, head_node.rightChild]): + self.pprint(child, _pre, bool(i) ,term=not(bool(child))) + + if __name__ == '__main__': tree = Tree() tree.insert(10) @@ -117,6 +137,7 @@ def postorder(self): tree.insert(7) tree.insert(15) tree.insert(13) + tree.pprint() print(tree.find(1)) print(tree.find(12)) tree.preorder() diff --git a/Programs/P62_BinaryTree.py b/Programs/P62_BinaryTree.py index fe29b3a..56a3bc1 100644 --- a/Programs/P62_BinaryTree.py +++ b/Programs/P62_BinaryTree.py @@ -38,18 +38,39 @@ def insertLeft(self,newnodeData): tree.left = self.left + + def printTree(tree): if tree != None: printTree(tree.getLeftChild()) print(tree.getnodeDataValue()) printTree(tree.getRightChild()) + +def pprint(head_node, _pre="", _last=True, term=False): + data = "*" if head_node is None else head_node.nodeData + + print(_pre, "`- " if _last else "|- ", data, sep="") + _pre += " " if _last else "| " + + if term: return + + left = head_node.getLeftChild() + right = head_node.getRightChild() + + for i, child in enumerate([left, right]): + pprint(child, _pre, bool(i) ,term=not(bool(child))) + + + + def testTree(): myTree = BinaryTree("1") myTree.insertLeft("2") myTree.insertRight("3") myTree.insertRight("4") printTree(myTree) + pprint(myTree) if __name__ == '__main__': testTree() From d968c4dcdf6f308b0276c74b796a9aaa6cbf46f7 Mon Sep 17 00:00:00 2001 From: Jayasree77 <41224416+Jayasree77@users.noreply.github.com> Date: Sun, 19 Apr 2020 19:51:11 +0530 Subject: [PATCH 14/21] Create Property_decoraters.py (#19) --- OOP/P11_Property decorators.py | 38 ++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 OOP/P11_Property decorators.py diff --git a/OOP/P11_Property decorators.py b/OOP/P11_Property decorators.py new file mode 100644 index 0000000..2489bff --- /dev/null +++ b/OOP/P11_Property decorators.py @@ -0,0 +1,38 @@ +#This shows the usage of property decorators + +#Python @property is one of the built-in decorators. The main purpose of any decorator is to change your class methods or attributes in such a way so that the users neeed not make any additional changes in their code. + +#Without property decorators + +class BankAccount: + def __init__(self,name,balance): + self.name=name + self.balance=balance + self.total= self.name+ " has "+self.balance+ " dollars in the account" + +user1=BankAccount("Elon Musk","10000") +user1.name="Tim cook" +print(user1.name) +print(user1.total) + +# Output: Tim cook +# Elon Musk has 10000 dollars in the account + + +#With property decorators + +class BankAccount: + def __init__(self,name,balance): + self.name=name + self.balance=balance + @property + def total(self): + return self.name+ " has "+self.balance+ " dollars in the account" + +user1=BankAccount("Elon Musk","10000") +user1.name="Tim cook" +print(user1.name) +print(user1.total) + +#Output: Tim cook +# Tim cook has 10000 dollars in the account From 5c0e4b2f140f0103f004e035d57b13348ca25c99 Mon Sep 17 00:00:00 2001 From: arun tvs Date: Thu, 7 May 2020 13:57:41 +0530 Subject: [PATCH 15/21] Add simple django project (#16) --- README.md | 2 ++ 1 file changed, 2 insertions(+) diff --git a/README.md b/README.md index ab3fef9..c79a6c5 100644 --- a/README.md +++ b/README.md @@ -166,6 +166,8 @@ An example of Python Lambda function Encryption/ Decryption using RSA Algorithm * [Python ftplib](https://github.com/OmkarPathak/Python-Programs/blob/master/Programs/P76_PythonFTP.py) A simple Python FTP file transfer example +* [Python Django Project (beginner)](https://github.com/modernwarfareuplink/fyleBanksApi) +A simple Django Project with two endpoints to show IFSC and bank details # Donation From 2029a5ecfe7162e3cbd42ff4c75df019a23d7791 Mon Sep 17 00:00:00 2001 From: Omkar Pathak Date: Thu, 7 May 2020 15:01:02 +0530 Subject: [PATCH 16/21] Add files via upload --- Untitled (1).py | 174 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 174 insertions(+) create mode 100644 Untitled (1).py diff --git a/Untitled (1).py b/Untitled (1).py new file mode 100644 index 0000000..318a38e --- /dev/null +++ b/Untitled (1).py @@ -0,0 +1,174 @@ +#!/usr/bin/env python +# coding: utf-8 + +# # File Handling using Python + +# In[1]: + + +# open(filename, mode) + +# r - reading +# w - writing +# a - appending + + +# In[7]: + + +file = open('social.txt', 'r') +data = file.read() + +# if for + +file.close() + +print(file.closed) + + +# In[11]: + + +# context manager + +with open('social.txt', 'r') as file: + data = file.read() + +print(file.closed) + + +# In[15]: + + +with open('something.txt', 'a') as file: + file.write('MMCOE - yethe bahutanche hith!') + + +# In[18]: + + +with open('social.txt', 'r') as fd: + data = fd.read(6) # how many bytes or characters you have to read + +print(data) + + +# In[21]: + + +import os + +print(os.getcwd()) + + +# In[22]: + + +print('Original Directory:', os.getcwd()) +os.chdir('/home/omkarpathak/Documents/Notebooks') +print('Current Directory:', os.getcwd()) + + +# In[24]: + + +print(os.listdir()) + + +# In[30]: + + +files = [] + +files = os.listdir() + +# os.path.isfile(filename) # return True is it is a file, else it returns False + +for file in files: + if os.path.isfile(os.path.abspath(file)): + print('File:', file) + +for file in files: + if os.path.isdir(os.path.abspath(file)): + print('Dir:', file) + + +# In[68]: + + +os.chdir('/home/omkarpathak/Documents/PythonLecture/Naruto/Directory0') + +for i in range(10): + os.mkdir('Directory' + str(i) + str(i)) # creating a folder + os.chdir('Directory' + str(i) + str(i)) # Directory0 -> Directory1 + with open('something.txt', 'w') as file: + file.write('Text') + os.chdir('/home/omkarpathak/Documents/PythonLecture/Naruto/Directory0') + + +# In[47]: + + +os.chdir('/home/omkarpathak/Documents/PythonLecture/') + + +# In[44]: + + +mylist = ['omkar', 1, 3, 4.0] +print(mylist) + + +# In[53]: + + +word_to_check = 'hilarious' + +with open('social.txt', 'r') as file: + data = file.read() + +for line in data.split('\n'): + if word_to_check in line: + print('True') + print(line) + +print(len(data.split('\n'))) + + +# In[72]: + + +os.chdir('/home/omkarpathak/Documents/PythonLecture') +with open('social.txt', 'r') as file: + data = file.read() + +char = 'M' +# print(data.lower()) +print(data.lower().count(char.lower())) + + +# In[60]: + + +with open('social.txt', 'r') as file: + data = file.read() + +char = input('Enter a character of your choice:') + +print(data.lower().count(char)) + + +# In[76]: + + +string = 'My namename is Omkar' +print(string.count('name')) # fuzzy search + + +# In[ ]: + + +import numpy +import scipy +import matplotlib + From e0eb3f767207598895a8e86e583cf7cf1f1e60a0 Mon Sep 17 00:00:00 2001 From: Vishal Naik <59202862+Monsieurvishal@users.noreply.github.com> Date: Sun, 21 Jun 2020 11:19:28 +0530 Subject: [PATCH 17/21] alternate program update (#21) Press enter to start and stop the watch --- Programs/P19_SimpleStopWatch.py | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/Programs/P19_SimpleStopWatch.py b/Programs/P19_SimpleStopWatch.py index 59eec6b..bbbff67 100644 --- a/Programs/P19_SimpleStopWatch.py +++ b/Programs/P19_SimpleStopWatch.py @@ -14,3 +14,32 @@ endtime = time.time() print('Total Time:', round(endtime - starttime, 2),'secs') break +# Press enter to start and stop the watch +""" +import time + +print('Press Enter to begin, Press Enter again to stop') +if input()=='': + starttime = time.time() + print('Started') + while True: + val=input() #For ENTER + if val=='': + print('Stopped') + endtime = time.time() + print('Total Time:', round(endtime - starttime, 2),'secs') + break + +""" + +""" +Output: +Press Enter to begin, Press Enter again to stop + +Started + +Stopped +Total Time: 1.05 secs + +""" + From 1b303377aa3a484dd1cbdaeaa94f719cd6d40dea Mon Sep 17 00:00:00 2001 From: Vishal Naik <59202862+Monsieurvishal@users.noreply.github.com> Date: Tue, 23 Jun 2020 14:37:39 +0530 Subject: [PATCH 18/21] fixed indexing error (#23) Enter your message: vishal Enter you key [1 - 26]: 7 Encrypt or Decrypt? [E/D]: e --------------------------------------------------------------------------- IndexError Traceback (most recent call last) in 35 36 if __name__ == '__main__': ---> 37 main() in main() 30 31 if choice.lower().startswith('e'): ---> 32 print(encrypt(message, key)) 33 else: 34 print(decrypt(message, key)) in encrypt(message, key) 9 num = LETTERS.find(chars) 10 num += key ---> 11 encrypted += LETTERS[num] 12 13 return encrypted IndexError: string index out of range ______________________________________________ Above issue was solved --- Programs/P40_CipherText.py | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/Programs/P40_CipherText.py b/Programs/P40_CipherText.py index 3733f43..e092f31 100644 --- a/Programs/P40_CipherText.py +++ b/Programs/P40_CipherText.py @@ -11,7 +11,10 @@ def encrypt(message, key): if chars in LETTERS: num = LETTERS.find(chars) num += key - encrypted += LETTERS[num] + if num>25: + num=num%25 + num=num-1 + encrypted =encrypted + LETTERS[num] return encrypted @@ -21,8 +24,11 @@ def decrypt(message, key): for chars in message: if chars in LETTERS: num = LETTERS.find(chars) - num -= key - decrypted += LETTERS[num] + if num>25: + num=num%25 + num=num-1 + num = num -key + decrypted =decrypted+LETTERS[num] return decrypted From 5893eca078094623e6f8e37c4958d5ec01d8dac7 Mon Sep 17 00:00:00 2001 From: Tej Pratap Yadav <60545022+tyadav4268@users.noreply.github.com> Date: Fri, 2 Oct 2020 08:56:15 +0530 Subject: [PATCH 19/21] Update P72_PythonLambda.py (#41) Added some lines to demonstrate the use of lambda function in a more compact way. for example directly passing the arguments to lambda function. --- Programs/P72_PythonLambda.py | 24 +++++++++++++++++------- 1 file changed, 17 insertions(+), 7 deletions(-) diff --git a/Programs/P72_PythonLambda.py b/Programs/P72_PythonLambda.py index 77b2da4..67fc881 100644 --- a/Programs/P72_PythonLambda.py +++ b/Programs/P72_PythonLambda.py @@ -10,14 +10,24 @@ # expression using these arguments. You can assign the function to a variable to give it a name. # The following example of a lambda function returns the sum of its two arguments: -myFunc = lambda x, y: x * y -# returns 6 -print(myFunc(2, 3)) +myFunc = lambda x, y: x * y -# example to find squares of all numbers from a list +print(myFunc(2, 3)) #output: 6 + +#Here we are directly creating the function and passing the arguments +print((lambda x, y: x * y)(2, 3)) #same output i.e 6 + +print(type(lambda x, y: x * y)) #Output: + +# example to find squares of all numbers of a list myList = [i for i in range(10)] + # returns square of each number -myFunc = lambda x: x * x +myFunc2 = lambda x: x * x + +squares = list(map(myFunc2, myList)) +print(squares) # Output: [0, 1, 4, 9, 16, 25, 36, 49, 64, 81] + +print(list(map(lambda x: x * x, myList))) #same as above + -squares = list(map(myFunc, myList)) -print(squares) # [0, 1, 4, 9, 16, 25, 36, 49, 64, 81] From 6039e35b51696cbe7c71cc4a5cfdc743b1bdef1b Mon Sep 17 00:00:00 2001 From: Yash <33280486+yash-odint@users.noreply.github.com> Date: Fri, 2 Oct 2020 09:04:58 +0530 Subject: [PATCH 20/21] Update P04_Factorial.py (#28) --- Programs/P04_Factorial.py | 1 + 1 file changed, 1 insertion(+) diff --git a/Programs/P04_Factorial.py b/Programs/P04_Factorial.py index 5798ccf..fb29789 100644 --- a/Programs/P04_Factorial.py +++ b/Programs/P04_Factorial.py @@ -1,5 +1,6 @@ #Author: OMKAR PATHAK #This program finds the favtorial of the specified numbers +#For example, factorial of 5 = 5*4*3*2*1 = 120 def factorial(number): '''This function finds the factorial of the number passed as argument''' From ed96a4f7b2ddcad5be6c6a0f13cff89975731b77 Mon Sep 17 00:00:00 2001 From: Gunjan Kadel <86482290+GunjanKadel@users.noreply.github.com> Date: Sun, 12 Sep 2021 17:02:13 +0530 Subject: [PATCH 21/21] Added a Basic Chatbot program using Python (#76) --- Programs/Chatbot.py | 145 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 145 insertions(+) create mode 100644 Programs/Chatbot.py diff --git a/Programs/Chatbot.py b/Programs/Chatbot.py new file mode 100644 index 0000000..7c35e98 --- /dev/null +++ b/Programs/Chatbot.py @@ -0,0 +1,145 @@ +# -*- coding: utf-8 -*- +import nltk +from nltk.chat.util import Chat, reflections + +reflections = { + "i am" : "you are", + "i was" : "you were", + "i" : "you", + "i'm" : "you are", + "i'd" : "you would", + "i've" : "you have", + "i'll" : "you will", + "my" : "your", + "you are" : "I am", + "you were" : "I was", + "you've" : "I have", + "you'll" : "I will", + "your" : "my", + "yours" : "mine", + "you" : "me", + "me" : "you", + +} +pairs = [ + [ + r"my name is (.*)", + ["Hello %1, How are you today ?",] + ], + [ + r"hi|hey|hello", + ["Hello", "Hey there",] + ], + [ + r"what is your name ?|your name|name please", + ["I am Y2K. You can call me crazy individual!",] + ], + [ + r"how are you ?|how you doing|what about you|how about you ?", + ["I'm doing good. How can I help you ?",] + ], + [ + r"sorry (.*)", + ["Its alright","Its OK, never mind",] + ], + [ + r"I am fine", + ["Great to hear that, How can I help you?",] + ], + [ + r"(.*) continents", + ["Asia, Africa, North America, South America, Antarctica, Europe, and Australia ",] + ], + [ + r"(.*) (english|hollywood) movie", + ["The Shawshank Redemption", " The Lord of the Rings: The Return of the King","Inception", "Interstellar", "Parasite", "Twilight", "Fast & Furious", "Lucky one","A walk to remember", "The Last Song", "The Notebook","The Fault in Our Stars", "Joker", "Me Before You", "All the boys have met before","Kissing booth", "Titanic",] + ], + [ + r"i'm (.*) doing good", + ["Nice to hear that","How can I help you?:)",] + ], + [ + r"(.*) age?|are you an (idiot|stupid)|what do you think you are", + ["I'm a computer program dude....Seriously you are asking me this?",] + ], + [ + r"(.*) (online|free) courses", + ["Udemy","Udacity","Great Learning","Google Digital Garage","Swayam",] + ], + [ + r"(.*) (news channel|news)", + ["BCC World News","Fox News","Cable News Network (CNN)","Sky News","MSNCB","Republic World","ZEE News","ABP News",] + ], + [ + r"(.*) (horror|spooky) movie", + ["The Nun", "Annabelle", "The conjuring", "Sinister", "The cabin in the wood", "insidious", "IT","Ouija", "Train to Busan", "The Ring", "Hush", "Evil Dead", "Oculus",] + ], + [ + r"(.*) (bollywood|hindi) movie", + ["War", "My name is Khan", "Happy new year", "Dilwale", "Uri", "Don", "Don 2", "Raees","Raazi", "Kalank", "Kalank", "Dangal", "LUDO", "Good Newz", "PK", "Jab Tak Hai Jaan","Cocktail", "Bahubali", "M.S.Dhoni", "Aashiqui 2","Dear Zindagi","Anand", "Mughal-E-Azam", "Mother India", "Don ", " Parinda", "Mr. India","Mera Naam Joker", "Amar, Akbar and Anthony", " Agneepath ", "Sahib Bibi Aur Ghulam","Sholay",] + ], + [ + r"(.*) (webseries|series)", + ["You", "Lucifer", "Cursed", "Mismatched", "Money Heist", "Stranger Things", "Merlin","The Protector", "Sabrina", "Dark", "Friends", "The Big Bang Theory", "Little Things","Lock & Key", "Sherlock", "Sweet Tooth", "The Witcher", "Shadow and Bones","Never Have i ever", "Brooklyn Nine-Nine", "Ragnarok", "Originals", "Vampire Diaries","The Order", "The Boss Baby", "The Haunting of Hill House", "Pup Academy", "Mary Queen of Scots","Bitten", "Titans", "Warrior Nun","The Haunting of bly Manor",] + ], + [ + r"(.*) k-drama", + ["descendants of the sun","busted", "her private life", "whats wrong with secretary kim","its okay to not be okay", "hospital playlist", "crash landing on you","weightlifting fairy kim bok joo", "my first first love", "beauty inside", "was it love",] + ], + [ + r"(.*) (novel|book)", + ["Harry Potter", "Twilight", "Alchemist", "Angel And Demon", "Dead Beautiful", "Lost Symbol", "The Vinche Code", "Hunger Games",] + ], + [ + r"(.*) created ?", + ["I am created using Python's NLTK library ","top secret",] + ], + [ + r"(.*) band", + ["BTS", "The Beatles", "The rolling stones", "Maroon 5", "One Direction", "No Doubt","Black Pink", "EXO", "MonstaX", "Stray Kids","The chainsmokers",] + ], + [ + r"(.*) actress", + ["Scarlett Johansson", "Jennifer Lawrence", "Emma Watson", " Margot Robbie","Angelina Jolie", "Kristen Stewart", "Rachel McAdams","Deepika Padukone", "Priyanka Chopra", "Alia Bhatt", "Kareena Kapoor","Nora Fatehi", "Jacqueline Fernandez", "Aishwarya Rai", "Sara Ali Khan", "Shraddha Kapoor","Anushka Sharma", "Disha Patani",] + ], + [ + r"(.*) (game|sport)", + ["Cricket","Hockey", "Basketball", "Football", "Baseball","Badminton", "Tennis", "Swimming", "Archery","Skates", "Volleyball", "Table Tennis", "Golf",] + ], + [ + r"(.*) (sports person|player)", + ["Lionel Messi","Sania Mirza", "Sachin Tendulkar", "Virat Kohli", "Kevin Durant","Hardik Pandya", "Rohit Sharma", "P. V. Sindhu", "Parupalli Kashyap","Sania Mirza", "Dhyan Chand", "Cristiano Ronaldo", "Robert Lewandowski","Chris Gayle", "Steve Smith", "David Warner", "Ricky Ponting","Stephen Curry", "LeBron James", "M.S.Dhoni", "Chris Paul",] + ], + [ + r"(.*) actor", + ["Robert Downey, Jr.", "Chris Hemsworth", "Tom Holland", "Brad Pitt","Tom Hiddleston", "Tom Cruise", "Chris Evans", "Benedict Cumberbatch","Paul Rudd", "Jeremy Renner", "Ian Somerhalder ","Paul Wesley", "Aamir Khan", "Amitabh Bachchan","Anil Kapoor", "Ranveer Singh", "Ranbir Kapoor", "Salman Khan","Sanjay Dutt", "Shah Rukh Khan", "Tiger Shroff", "Varun Dhawan",] + ], + [ + r"(.*) dialogue", + ["Mere paas maa hai.","Pushpa, I hate tears…","Kitne aadmi the!","Babumoshai, zindagi badi honi chahiye, lambi nahi.","Rishtey mein toh hum tumhare baap lagte hai, naam hai Shahenshaah!","Dosti ka ek usool hai madam – no sorry, no thank you.","Mogambo khush hua!","Hum jahan khade hote hain line yahi se shuru hoti hai.","Bade bade deshon mein aisi choti-choti baatein hoti rehti hai, Senorita.","Haar kar jeetne wale ko baazigar kehte hai.","Mere Karan Arjun aayenge.","Agar maa ka doodh piya hai toh samne aa!","Uska to na bad luck hi kharab hai.","Crime Master Gogo naam hai mera, aankhen nikal ke gotiyan khelta hun main.","Tareekh pe tareekh, tareekh pe tareekh, tareekh pe tareekh milti gayi My Lord, par insaaf nahi mila","Rahul, naam toh suna hi hoga.","Mein apni favourite hoon!","Picture abhi baaki hai mere dost!","How’s the josh?","Thappad se darr nahi lagta sahab, pyaar se lagta hai.","Filmein sirf teen cheezo ke wajah se chalti hai…entertainment, entertainment, entertainment…aur main entertainment hoon.","All izz well",] + ], + [ + r"quit", + ["Bye take care. See you soon :) ","It was nice talking to you. See you soon :)",] + ], + [ + r"(.*) joke", + ["Why did the tomato blush? Because it saw the salad dressing.","What do you call bears with no ears? B","What do dentists call X-rays? Tooth pics.","Did you hear about the first restaurant to open on the moon? It had great food, but no atmosphere.","What did one wall say to the other wall? I’ll meet you at the corner.","When does a joke become a “dad” joke? When the punchline is apparent.","What did the paper say to the pencil? Write on!","How did the bullet lose its job? It got fired.","Why should you never trust stairs? They are always up to something.","Sometimes I tuck my knees into my chest and lean forward.That’s just how I roll.","What do you call a cheese that’s not yours? Nacho cheese!","Did you hear about the cheese factory that exploded in France?There was nothing left but de Brie.",] + ], + [ + r"even me", + ["That's great"] + ], + [ + r"thank you", + ["Your welcome , would you like to know something else if no then please type in QUIT to exit",] + ], +] +def chat(): + print("Hi! I am Y2K..") + chat = Chat(pairs, reflections) + chat.converse() + +#initiate the conversation +if __name__ == "__main__": + chat() \ No newline at end of file