m和n有何意义

#include <bits/stdc++.h>
using namespace std;
struct node {
	int bomb_times;
	int last_bomb;
} f[101][101];
int main() {
	int n, m, x, y;
	cin >> n >> m >> x >> y;
	for (int i = 1; i <= x; i++) {
		int x1, y1, x2, y2;
		cin >> x1 >> y1 >> x2 >> y2;
		for (int j = x1; j <= x2; j++) {
			for (int k = y1; k <= y2; k++) {
				f[j][k].bomb_times++;
				f[j][k].last_bomb = i;
			}
		}
	}
	for (int i = 1; i <= y; i++) {
		int x3, y3;
		cin >> x3 >> y3;
		if (f[x3][y3].bomb_times == 0) {
			cout << 'N' << endl;
		} else {
			cout << "Y " << f[x3][y3].bomb_times << ' ' << f[x3][y3].last_bomb << endl;
		}
	}
	return 0;
}