How to Solve Coin Change I I Problem
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Coin Change II
You are given an integer array coins representing coins of different denominations and an integer amount representing a total amount of money. Return the number of combinations that make up that amoun...
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Understanding the Coin Change I I Problem
Let's break down this LeetCode problem and understand what makes it challenging in interview settings.
Problem Statement
You are given an integer array coins representing coins of different denominations and an integer amount representing a total amount of money. Return the number of combinations that make up that amount. If that amount of money cannot be made up by any combination of the coins, return 0. You may assume that you have an infinite number of each kind of coin. The answer is guaranteed to fit into a signed 32-bit integer.
Coin Change II
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Examples
amount = 5, coins = [1,2,5]4there are four ways to make up the amount: 5=5 5=2+2+1 5=2+1+1+1 5=1+1+1+1+1
amount = 3, coins = [2]0the amount of 3 cannot be made up just with coins of 2.
amount = 10, coins = [10]1Constraints
1 <= coins.length <= 3001 <= coins[i] <= 5000All the values of coins are unique.0 <= amount <= 5000How Interview Coder Helps with Leetcode Problems
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