Marjar Cola

[email protected] Sycamore, ZJNU
[email protected] 4/9/2017
#include <iostream>
#include <sstream>
#include <iomanip>
#include <cmath>
#include <string>
#include <algorithm>
#include <numeric>
#include <functional>
#include <vector>
 

#include <set>
#include <list>
#include <stack>
#include <queue>
#include <map>
#include <algorithm>
#include <cctype>
#include<fstream>
#include<cstdio>
//#define cin fin
//#define cout fout
//ifstream fin("in.txt");
//ofstream fout("out.txt");
using namespace
 
 std;
typedef vector<int> VI;
typedef pair<int, int> PII;
 
int main()
{
	int T;
	cin >> T;
	while (T--)
	{
		int x, y, a, b;
		cin >> x >> y >> a >> b;
 
		int c = 0, d = 0;
		while (a >= x || b >= y)
		{
			if (a >= x)
			{
				a = a - x + 1;
				b++;
 

				c++;
			}
			if (b >= y)
			{
				b = b - y + 1;
				a++;
				c++;
			}
			d++;
			if (d == 100000)
			{
 
				break;
			}
		}
		if (d == 100000)cout << "INF" << endl;
		else cout << c << endl;
	}
	return 0;
} 

ZOJ 3948: Marjar Cola