Submission #423400

#	Time	Username	Problem	Language	Result	Execution time	Memory
423400		tengiz05	Furniture (JOI20_furniture)	C++17	5 / 100	2911 ms	512 KiB

furniture

#include <bits/stdc++.h>
constexpr int N = 105;
int n, m, c[N][N], a[N][N];
int main() {
    std::ios::sync_with_stdio(false);
    std::cin.tie(nullptr);
    std::cin >> n >> m;
    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= m; j++) {
            std::cin >> c[i][j];
        }
    }
    a[0][1] = 1;
    int Q;
    std::cin >> Q;
    while (Q--) {
        int x, y;
        std::cin >> x >> y;
        c[x][y] = 1;
        for (int i = 1; i <= n; i++) {
            for (int j = 1; j <= m; j++) {
                a[i][j] = c[i][j] == 0 && (a[i - 1][j] | a[i][j - 1]);
            }
        }
        if (a[n][m]) {
            std::cout << 1 << "\n";
        } else {
            c[x][y] = 0;
            std::cout << 0 << "\n";
        }
    }
    return 0;
}

• Subtask 1: 5 / 5
• Subtask 2: 0 / 95