{ "data": { "question": { "questionId": "322", "questionFrontendId": "322", "categoryTitle": "Algorithms", "boundTopicId": 1076, "title": "Coin Change", "titleSlug": "coin-change", "content": "

You are given an integer array coins representing coins of different denominations and an integer amount representing a total amount of money.

\n\n

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.

\n\n

You may assume that you have an infinite number of each kind of coin.

\n\n

 

\n

Example 1:

\n\n
\nInput: coins = [1,2,5], amount = 11\nOutput: 3\nExplanation: 11 = 5 + 5 + 1\n
\n\n

Example 2:

\n\n
\nInput: coins = [2], amount = 3\nOutput: -1\n
\n\n

Example 3:

\n\n
\nInput: coins = [1], amount = 0\nOutput: 0\n
\n\n

 

\n

Constraints:

\n\n\n", "translatedTitle": "零钱兑换", "translatedContent": "

给你一个整数数组 coins ，表示不同面额的硬币；以及一个整数 amount ，表示总金额。

\n\n

计算并返回可以凑成总金额所需的 最少的硬币个数 。如果没有任何一种硬币组合能组成总金额，返回 -1 。

\n\n

你可以认为每种硬币的数量是无限的。

\n\n

 

\n\n

示例 1：

\n\n
\n输入：coins = [1, 2, 5], amount = 11\n输出：3 \n解释：11 = 5 + 5 + 1
\n\n

示例 2：

\n\n
\n输入：coins = [2], amount = 3\n输出：-1
\n\n

示例 3：

\n\n
\n输入：coins = [1], amount = 0\n输出：0\n
\n\n

 

\n\n

提示：

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