제출 #1258382

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1258382		TAhmed33	Bomb (IZhO17_bomb)	C++20	16 / 100	1097 ms	31228 KiB

bomb

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
void solve () {
	int n, m; cin >> n >> m;
	vector <vector <char>> a(n + 1, vector <char> (m + 1));
	for (int i = 1; i <= n; i++) {
		for (int j = 1; j <= m; j++) {
			cin >> a[i][j];
		}
	}
	int mx = 0;
	for (int x = 1; x <= n; x++) {
		for (int y = 1; y <= m; y++) {
			vector <vector <int>> marked(n + 1, vector <int> (m + 1, 0));
			for (int i = 1; i + x - 1 <= n; i++) {
				for (int j = 1; j + y - 1 <= m; j++) {
					int cnt = 0;
					for (int r = i; r <= i + x - 1; r++) {
						for (int c = j; c <= j + y - 1; c++) {
							cnt += a[r][c] == '1';
						}
					}
					if (cnt == x * y) {
						for (int r = i; r <= i + x - 1; r++) {
							for (int c = j; c <= j + y - 1; c++) {
								marked[r][c] = 1;
							}
						}
					}
				}
			}
			bool flag = 1;
			for (int i = 1; i <= n; i++) {
				for (int j = 1; j <= m; j++) {
					if (a[i][j] == '1') {
						flag &= marked[i][j];
					}
				}
			}
			if (flag) {
				mx = max(mx, x * y);
			}
		}
	}
	cout << mx << '\n';
}	
signed main () {
	#ifndef ONLINE_JUDGE 
	//	freopen("input_file", "r", stdin);
		//freopen("output_file", "w", stdout);
	#endif
	ios::sync_with_stdio(0); cin.tie(0);
	int tc = 1; //cin >> tc;
	while (tc--) solve();
}

• Subtask 1: 16 / 100