added examples for day3

Author: Tazer

day3/input.txt

@@ -0,0 +1,2 @@
+R994,D213,L483,U102,L292,U153,L123,D568,R54,U482,L971,D679,L17,U492,R448,U75,R472,D209,R872,D271,L271,U175,L373,D968,R867,U191,R746,U717,L918,D171,L205,D399,R889,D626,R683,D853,R571,U42,L406,D390,R716,U364,L596,U226,L34,D805,R474,D304,R54,D854,L140,U923,L800,D833,L127,D576,R779,U433,L270,U602,L266,D874,R275,D146,L469,U623,R932,D564,R683,D769,L824,U818,L743,U846,R607,D860,R989,U927,R467,D465,R915,D531,L206,U366,R476,U516,R688,D144,L3,D612,L50,D519,R765,D684,L100,U233,R898,U957,R335,D614,R672,U428,R104,U294,L817,D83,R165,U328,L348,D231,R192,D982,R930,D949,R849,D144,R181,D691,R953,D796,L262,D883,L141,U264,L876,U445,R705,U802,L418,U177,R695,U138,L486,D598,R473,D704,R322,U818,R740,U218,R718,D942,R621,D277,L277,U338,L134,U586,L32,U89,L117,U296,R954,D775,L744,D655,R405,U67,R586,U37,L976,D486,L431,U671,R871,D865,R671,D434,L754,D933,L353,D430,L494,D729,R88,D438,R301,D111,L70,U561,L446,D973,R646,D419,R499,D496,L933,D463,L624,U999,L899,U954,R971,U533,R110,U483,R100,D452,R143,D73,L144,D220,L621,U62,R695,U270,L655,U404,L207,U946,L989,U767,L953,U271,L206,U315,L675,D579,L910,D413,R283,D118,L405,U724,L144,U969,R256,D940,L592,D714,L898,D937,R3,D175,L578,D981,R110,D217,L60,D57,R559,D913,R251,D883,L431,U450,L755,D126,L236,U532,R62,U33,L499,D29,R304,U25,R923,U732,L930,U812,R923,D12,L991,U223,R58,D638,R166,D980,R999,D825,L707,D956,L107,U676,R263,U949,L924,D928,L747,U641,L179,D398,R714,U715,R525,D515,R887,D21,R100,D424,L265,U704,R119,U77,L619,D308,R857,U272,L571,U650,L793
+L1010,D906,R561,D862,R541,D243,L958,D538,L930,U270,R282,D56,R692,U625,R962,U95,L834,D477,R375,D859,L158,D664,L874,U817,R218,U428,L194,U713,R1,D291,R608,D79,L582,U570,R952,U217,R441,U43,L966,U40,R103,U419,L387,U198,R306,U239,R714,U193,L111,D98,L308,U856,L702,D596,R903,D607,R86,D967,L191,D676,R606,D638,R512,D373,L623,U596,L151,U394,L241,D429,L324,D710,L663,U821,L351,D538,L917,U449,R120,D746,R833,U812,L691,D751,L631,U612,L107,D276,L997,D764,R644,U823,L574,U276,L48,U968,L97,D118,L976,U511,L976,U862,L232,D425,R586,U665,R893,D744,R317,D152,L406,U997,R377,D552,R226,D960,L232,D834,L911,U548,L127,U845,L687,U835,R18,D524,R226,D896,R89,U497,L748,U105,R174,U17,R212,U347,L942,U633,R799,U907,L971,D490,R690,D399,L725,U807,R244,U558,L754,D490,L726,D126,L639,D548,L18,D173,L188,D33,L707,D980,L728,U663,R593,D172,R314,U873,R409,U476,R312,U970,R28,U514,L378,D681,R611,U733,R135,U682,L736,D253,L432,D736,L777,U447,L174,D664,L652,D984,L714,D990,R608,D383,R51,U497,L343,D569,R515,D144,L949,D827,R112,U595,L109,D215,L401,U635,L953,U20,R780,U324,R955,D346,R762,D693,R56,U341,R481,U70,R385,U330,R278,D923,L835,D733,R235,U628,R505,U372,R469,D659,R618,U899,L21,U698,R688,U409,R775,D405,R846,D783,R675,U261,R721,D637,R957,D355,L50,U759,R769,D612,R538,U923,L780,U786,R104,D66,L67,U175,L820,D723,R124,U937,R923,D130,R758,U678,R215,U671,R366,U163,L783,U790,L832,D731,L736,D879,R508,U433,R705,U939,L969,U920,R683,D188,L349,U812,L36,D333,L88,U356,L140,D735,L217,D365,R23,D88,L20,D854,L437,U153,L307

day3/main.go

@@ -0,0 +1,38 @@
+package main
+
+import (
+	"bufio"
+	"log"
+	"os"
+)
+
+func main() {
+	file, err := os.Open("input.txt")
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer file.Close()
+
+	line1 := ""
+	line2 := ""
+
+	scanner := bufio.NewScanner(file)
+	for scanner.Scan() {
+		if line1 == "" {
+			line1 = scanner.Text()
+			continue
+		}
+		line2 = scanner.Text()
+	}
+
+	if err := scanner.Err(); err != nil {
+		log.Fatal(err)
+	}
+
+	log.Printf("Line1: %s Line2: %s", line1, line2)
+
+}
+
+func calculateManhattanDistance(line1,line2 string) int {
+	return 0
+}

day3/main_test.go

@@ -0,0 +1,44 @@
+package main
+
+import (
+	"testing"
+
+	"gopkg.in/go-playground/assert.v1"
+)
+
+func TestCrossinglines(t *testing.T) {
+	cases := []struct {
+		name     string
+		line1    string
+		line2    string
+		expected int
+	}{
+		{
+			name:     "example 1",
+			line1:    "R8,U5,L5,D3",
+			line2:    "U7,R6,D4,L4",
+			expected: 6,
+		},
+		{
+			name:     "example 2",
+			line1:    "R75,D30,R83,U83,L12,D49,R71,U7,L72",
+			line2:    "U62,R66,U55,R34,D71,R55,D58,R83",
+			expected: 159,
+		},
+		{
+			name:     "example 3",
+			line1:    "R98,U47,R26,D63,R33,U87,L62,D20,R33,U53,R51",
+			line2:    "U98,R91,D20,R16,D67,R40,U7,R15,U6,R7",
+			expected: 135,
+		},
+	}
+
+	for _, c := range cases {
+		t.Run(c.name, func(t *testing.T) {
+			got := calculateManhattanDistance(c.line1, c.line2)
+
+			assert.Equal(t, c.expected, got)
+		})
+
+	}
+}

go.mod

@@ -2,4 +2,7 @@ module github.com/tazer/adventofcode2019
 
 go 1.13
 
-require github.com/stretchr/testify v1.4.0
+require (
+	github.com/stretchr/testify v1.4.0
+	gopkg.in/go-playground/assert.v1 v1.2.1
+)

go.sum

@@ -6,5 +6,7 @@ github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+
 github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJyk=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/go-playground/assert.v1 v1.2.1 h1:xoYuJVE7KT85PYWrN730RguIQO0ePzVRfFMXadIrXTM=
+gopkg.in/go-playground/assert.v1 v1.2.1/go.mod h1:9RXL0bg/zibRAgZUYszZSwO/z8Y/a8bDuhia5mkpMnE=
 gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=