Submission #892882

#	Time	Username	Problem	Language	Result	Execution time	Memory
892882		AccountName	Trampoline (info1cup20_trampoline)	C++14	43 / 100	546 ms	1048576 KiB

trampoline

#include <bits/stdc++.h>
using namespace std;
 
#define int long long
 
signed main()
{
    ios_base::sync_with_stdio(false); cin.tie(NULL);

    int R, C, N;
    cin >> R >> C >> N;
    
    char greens[R+1][C+1]; // subtask 1,2,4
    for(int i = 0; i < R; i++)
    {
		for(int j = 0; j < C; j++)
		{
			greens[i][j] = 0;
		}
	}
    for(int i = 0; i < N; i++)
    {
		int x, y;
		cin >> x >> y;
		greens[x][y] = 1;
	}
	
	int T;
	cin >> T;
	
	for(int i = 0; i < T; i++)
	{
		int x_start, y_start, x_end, y_end;
		cin >> x_start >> y_start >> x_end >> y_end;
		
		int x = x_end;
		int y = y_end;
		
		while(x > x_start and y >= y_start)
		{
			//cout << x << " " << y << " c\n";
			if(greens[x-1][y] == 1)
			{
				x--;
			}
			else
			{
				y--;
			}
			if(y < y_start) break;
		}
		if(x == x_start and y_end >= y_start)
		{
			cout << "Yes\n";
		}
		else
		{
			cout << "No\n";
		}
	}
    
	return 0;
}

• Subtask 1: 23 / 23
• Subtask 2: 20 / 20
• Subtask 3: 0 / 11
• Subtask 4: 0 / 19
• Subtask 5: 0 / 27