oj.uz

Submission #683833

# Submission time Handle Problem Language Result Execution time Memory
683833 2023-01-19T12:27:52 Z abc864197532 Furniture (JOI20_furniture) C++17
5 / 100
 5000 ms 2432 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
#define pii pair<int,int>
#define all(x) x.begin(), x.end()

int main() {
	ios::sync_with_stdio(false), cin.tie(0);
	int n, m, q;
	cin >> n >> m;
	vector <vector <bool>> is(n, vector <bool>(m, false));
	for (int i = 0; i < n; ++i) {
		for (int j = 0, x; j < m; ++j) {
			cin >> x, is[i][j] = x;
		}
	}
	vector <vector <bool>> dp(n, vector <bool>(m, false));
	auto chk = [&]() {
		dp.assign(n, vector <bool>(m, false));
		dp[0][0] = true;
		for (int i = 0; i < n; ++i) for (int j = 0; j < m; ++j) if (dp[i][j]) {
			if (i + 1 < n && !is[i + 1][j]) {
				dp[i + 1][j] = true;
			}
			if (j + 1 < m && !is[i][j + 1]) {
				dp[i][j + 1] = true;
			}
		}
	};
	cin >> q;
	while (q--) {
		int x, y;
		cin >> x >> y, --x, --y;
		is[x][y] = true;
		chk();
		if (dp[n - 1][m - 1]) {
			cout << "1\n";
		} else {
			cout << "0\n";
			is[x][y] = false;
		}
	}
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 340 KB Output is correct
2 Correct 67 ms 352 KB Output is correct
3 Correct 91 ms 368 KB Output is correct
4 Correct 198 ms 384 KB Output is correct
5 Correct 216 ms 396 KB Output is correct
6 Correct 309 ms 404 KB Output is correct
7 Correct 246 ms 528 KB Output is correct
8 Correct 236 ms 416 KB Output is correct
9 Correct 281 ms 416 KB Output is correct

Subtask #2
0.0 / 95.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 340 KB Output is correct
2 Correct 67 ms 352 KB Output is correct
3 Correct 91 ms 368 KB Output is correct
4 Correct 198 ms 384 KB Output is correct
5 Correct 216 ms 396 KB Output is correct
6 Correct 309 ms 404 KB Output is correct
7 Correct 246 ms 528 KB Output is correct
8 Correct 236 ms 416 KB Output is correct
9 Correct 281 ms 416 KB Output is correct
10 Correct 3476 ms 632 KB Output is correct
11 Correct 124 ms 380 KB Output is correct
12 Execution timed out 5083 ms 2432 KB Time limit exceeded
13 Halted 0 ms 0 KB -