July Challenge 1 - Arranging Coins.java

class Solution {
public:
    int arrangeCoins(int n) {
        int a=n,i;
        for(i=1;i<=n;i++){
            if(a<=(i-1)){
                return i-1;
            }
            a=a-i;
            
        }
        
        return i-1;
    }
};