Package g0301_0400.s0322_coin_change

Class Solution

java.lang.Object

g0301_0400.s0322_coin_change.Solution

public class Solution
extends Object

322 - Coin Change.<p>Medium</p> <p>You are given an integer array <code>coins</code> representing coins of different denominations and an integer <code>amount</code> representing a total amount of money.</p> <p>Return <em>the fewest number of coins that you need to make up that amount</em>. If that amount of money cannot be made up by any combination of the coins, return <code>-1</code>.</p> <p>You may assume that you have an infinite number of each kind of coin.</p> <p><strong>Example 1:</strong></p> <p><strong>Input:</strong> coins = [1,2,5], amount = 11</p> <p><strong>Output:</strong> 3</p> <p><strong>Explanation:</strong> 11 = 5 + 5 + 1</p> <p><strong>Example 2:</strong></p> <p><strong>Input:</strong> coins = [2], amount = 3</p> <p><strong>Output:</strong> -1</p> <p><strong>Example 3:</strong></p> <p><strong>Input:</strong> coins = [1], amount = 0</p> <p><strong>Output:</strong> 0</p> <p><strong>Constraints:</strong></p> <ul> <li><code>1 <= coins.length <= 12</code></li> <li><code>1 <= coins[i] <= 2³¹ - 1</code></li> <li><code>0 <= amount <= 10⁴</code></li> </ul>

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
int	coinChange(int[] coins, int amount)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Solution

public Solution()

Method Details

coinChange

public int coinChange(int[] coins,
 int amount)