[Lv 1] 콜라 문제

https://school.programmers.co.kr/learn/courses/30/lessons/132267#

프로그래머스

 

#include <string>
#include <vector>

using namespace std;
int x, result;
int solution(int a, int b, int n) {
    int answer = 0;
    
    result = n;
    while(result >= a){
        x = result / a;
        result %= a;
        result += b * x;
        answer += x * b;
    }
    
    return answer;
}