322. Coin Change - LeetCode You are given an integer array coins representing coins of different denominations and an integer amount representing a total amount of money. Return the fewest number of coins that you need to make up that amount . If that amount of money cannot be made up by any combination of the coins, return -1 . You may assume that you have an infinite number of each kind of coin. Example 1: Input: coins = [1,2,5], amount = 11 Output: 3 Explanation: 11 = 5 + 5 + 1 Example 2: Input: coins = [2], amount = 3 Output: -1 Explanation: We use dynamic programming for this problem: First, we try to resolve the smaller problem! Suppose we have numbers type of coins = [1,2,5] We need to get minimum coins for amount 2 The smallest amount is 0 then we need 0 coin With amount 1 we need 1 coin With amount 2: For case: coin 1 < 2, mean coin 1 can be used, then 1 coin We ne...