From 563d43fe7b7e3d10bf0bc53980dfedcabdbdf77f Mon Sep 17 00:00:00 2001
From: Pegasus02K <pegasus02k@gmail.com>
Date: Thu, 14 Apr 2022 12:33:19 +0900
Subject: [PATCH] Create 322-Coin-Change.cpp

C++ solution for 322-Coin-Change
---
 cpp/322-Coin-Change.cpp | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 cpp/322-Coin-Change.cpp

diff --git a/cpp/322-Coin-Change.cpp b/cpp/322-Coin-Change.cpp
new file mode 100644
index 000000000..2b5a37073
--- /dev/null
+++ b/cpp/322-Coin-Change.cpp
@@ -0,0 +1,15 @@
+class Solution {
+public:
+    int coinChange(vector<int>& coins, int amount) {
+        vector<int> dp(amount + 1, amount + 1); // minimum coin combinations for 0 to amount, set default max value as amount+1(which is impossible to make)
+        dp[0] = 0; // base case: if amount is 0, 0 coins
+        for (int a = 1; a <= amount; ++a) {
+            for (int c : coins) {
+                if (a - c >= 0) // possible to try
+                    // min of (current min combination, using one for this coin and min of remainder)
+                    dp[a] = min(dp[a], 1 + dp[a - c]);
+            }
+        }
+        return dp[amount] != amount + 1 ? dp[amount] : -1;
+    }
+};