Algthorosm of coin

It looks like you’re asking about the algorithm of coin — this usually refers to the Coin Change algorithm in computer science.
There are two common versions of the Coin Change Problem:
1️⃣ Coin Change – Minimum Coins Problem
Problem:
Given a list of coin denominations and a target amount, find the minimum number of coins needed to make that amount.
Example
Coins = [1, 2, 5]
Amount = 11
Output → 3
Explanation: 5 + 5 + 1