oj.uz

Submission #757576

# Submission time Handle Problem Language Result Execution time Memory
757576 2023-06-13T11:18:09 Z Hanksburger Furniture (JOI20_furniture) C++17
0 / 100
 139 ms 424 KB 
#include <bits/stdc++.h>
using namespace std;
pair<int, int> p[4]={{1, 0}, {-1, 0}, {0, 1}, {0, -1}};
int a[105][105], visited[105][105];
queue<pair<int, int> > q;
int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int n, m, o;
    cin >> n >> m;
    for (int i=1; i<=n; i++)
        for (int j=1; j<=m; j++)
            cin >> a[i][j];
    cin >> o;
    for (int i=1; i<=o; i++)
    {
        int x, y;
        cin >> x >> y;
        a[x][y]=1;
        for (int j=1; j<=n; j++)
            for (int k=1; k<=m; k++)
                visited[j][k]=0;
        visited[1][1]=1;
        q.push({1, 1});
        while (!q.empty())
        {
            int ux=q.front().first, uy=q.front().second;
            q.pop();
//            cout << "ux uy " << ux << ' ' << uy << '\n';
            for (int j=0; j<4; j++)
            {
                int vx=ux+p[j].first, vy=uy+p[j].second;
                if (1<=vx && vx<=n && 1<=vy && vy<=m && !visited[vx][vy] && !a[vx][vy])
                {
                    visited[vx][vy]=1;
                    q.push({vx, vy});
                }
            }
        }
        if (!visited[n][m])
            a[x][y]=0;
        cout << a[x][y] << '\n';
    }
}

Subtask #1
0.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 45 ms 380 KB Output is correct
2 Incorrect 139 ms 424 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0.0 / 95.0

# Verdict Execution time Memory Grader output
1 Correct 45 ms 380 KB Output is correct
2 Incorrect 139 ms 424 KB Output isn't correct
3 Halted 0 ms 0 KB -