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Submission #933415

# Submission time Handle Problem Language Result Execution time Memory
933415 2024-02-25T16:00:07 Z LucaIlie Toll (BOI17_toll) C++17
0 / 100
 1 ms 436 KB 
#include <bits/stdc++.h>

using namespace std;

const int MAX_K = 5;
const int MAX_N = 5e4;
const int INF = 1e9;
int k;

struct matrix {
    int n;
    vector<vector<int>> mat;

    void init( int _n ) {
        n = _n;
        mat.resize( n );
        for ( int i = 0; i < n; i++ ) {
            mat[i].resize( n );
            for ( int j = 0; j < n; j++ )
                mat[i][j] = INF;
        }
    }

    matrix operator + ( matrix b ) {
        matrix a = *this;
        matrix c;
        c.init( n );

        for ( int i = 0; i < n; i++ ) {
            for ( int j = 0; j < n; j++ ) {
                for ( int k = 0; k < n; k++ )
                    c.mat[i][j] = min( c.mat[i][j], a.mat[i][k] + b.mat[k][j] );
            }
        }

        return c;
    }
};


matrix buckets[MAX_K];

matrix query( int l, int r ) {
    matrix ans = buckets[l];
    for ( int i = l + 1; i <= r; i++ )
        ans = ans + buckets[i];
    return ans;
}

int main() {
    int k, n, m, o;

    cin >> k >> n >> m >> o;


    int b = 0;
    for ( int i = 0; i < n; i += k ) {
        buckets[i / k].init( k );
        b++;
    }
    for ( int i = 0; i < m; i++ ) {
        int a, b, c;
        cin >> a >> b >> c;
        buckets[a / k].mat[a % k][b % k] = c;
    }

    while ( o-- ) {
        int l, r;

        cin >> l >> r;
        int ans = query( l / k, r / k - 1 ).mat[l % k][r % k];
        if ( ans == INF || l / k >= r / k )
            cout << "-1\n";
        else
            cout << ans << "\n";
    }

    return 0;
}

Subtask #1
0 / 7.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 344 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 348 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #3
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 436 KB Output is correct
6 Runtime error 1 ms 348 KB Execution killed with signal 11
7 Halted 0 ms 0 KB -

Subtask #4
0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 436 KB Output is correct
6 Runtime error 1 ms 348 KB Execution killed with signal 11
7 Halted 0 ms 0 KB -

Subtask #5
0 / 44.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 344 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -