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Submission #1025410

# Submission time Handle Problem Language Result Execution time Memory
1025410 2024-07-17T02:14:51 Z HappyCapybara Raisins (IOI09_raisins) C++17
100 / 100
 490 ms 29492 KB 
#include<bits/stdc++.h>
using namespace std;

vector<vector<int>> ps;
vector<vector<vector<vector<int>>>> dp;

int val(int a, int b, int c, int d){
    return ps[b+1][d+1]-ps[a][d+1]-ps[b+1][c]+ps[a][c];
}

int solve(int a, int b, int c, int d){
    if (a == b && c == d) return 0;
    if (dp[a][b][c][d] != -1) return dp[a][b][c][d];
    int bsf = pow(10, 8);
    for (int i=a; i<b; i++) bsf = min(bsf, solve(a, i, c, d)+solve(i+1, b, c, d));
    for (int i=c; i<d; i++) bsf = min(bsf, solve(a, b, c, i)+solve(a, b, i+1, d));
    return dp[a][b][c][d] = bsf+val(a, b, c, d);
}

int main(){
    int n, m;
    cin >> n >> m;
    ps.resize(n+1, vector<int>(m+1, 0));
    for (int i=0; i<n; i++){
        for (int j=0; j<m; j++){
            cin >> ps[i+1][j+1];
            ps[i+1][j+1] += (ps[i][j+1]+ps[i+1][j]-ps[i][j]);
        }
    }
    dp.resize(n, vector<vector<vector<int>>>(n, vector<vector<int>>(m, vector<int>(m, -1))));
    cout << solve(0, n-1, 0, m-1) << "\n";
}

Subtask #1
100.0 / 100.0

# 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 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 436 KB Output is correct
8 Correct 6 ms 1372 KB Output is correct
9 Correct 10 ms 1884 KB Output is correct
10 Correct 15 ms 2396 KB Output is correct
11 Correct 13 ms 2140 KB Output is correct
12 Correct 49 ms 5720 KB Output is correct
13 Correct 88 ms 8412 KB Output is correct
14 Correct 22 ms 2908 KB Output is correct
15 Correct 99 ms 9564 KB Output is correct
16 Correct 8 ms 1880 KB Output is correct
17 Correct 39 ms 4956 KB Output is correct
18 Correct 291 ms 18524 KB Output is correct
19 Correct 411 ms 26456 KB Output is correct
20 Correct 490 ms 29492 KB Output is correct