Educational Codeforces Round 52 (Rated for Div. 2) A. Vasya and Chocolate

题解

题目大意 有s元 每个巧克力c元买a送b

AC代码

#include <stdio.h>
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

const int INF = 0x3f3f3f3f;

int main()
{
#ifdef LOCAL
	freopen("C:/input.txt", "r", stdin);
#endif
	int T;
	cin >> T;
	while (T--)
	{
		int s, a, b, c;
		cin >> s >> a >> b >> c;
		ll k = s / c;
		cout << k + 1LL * k / a * b << endl;
	}

	return 0;
}