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Submission #374686

# Submission time Handle Problem Language Result Execution time Memory
374686 2021-03-07T20:39:07 Z Christopher_Rdz Raisins (IOI09_raisins) C++17
100 / 100
 1212 ms 21228 KB 
#include <bits/stdc++.h>
using namespace std;
#define MAX 51

int memo[MAX][MAX][MAX][MAX];
int t[MAX][MAX];

int suma(int i, int j, int a, int b){
    return t[a][b] - t[a][j - 1] - t[i - 1][b] + t[i - 1][j - 1];
}

int dp(int i, int j, int a, int b){
    if (i == a and j == b){
        return 0;
    }else{
        if (memo[i][j][a][b] != 0){
            return memo[i][j][a][b];
        }else{
            memo[i][j][a][b] = 1000000000;
            for (int k = i; k < a; k++){
                memo[i][j][a][b] = min(memo[i][j][a][b], dp(i, j, k, b) + dp(k + 1, j, a, b) + suma(i, j, a, b));
            }
            for (int c = j; c < b; c++){
                memo[i][j][a][b] = min(memo[i][j][a][b], dp(i, j, a, c) + dp(i, c + 1, a, b) + suma(i, j, a, b));
            }
            return memo[i][j][a][b];
        }
    }
}

int main(){
    ios_base::sync_with_stdio(0); cin.tie(0);
    int n, m;
    cin >> n >> m;
    for (int i = 1; i <= n; i++){
        for (int j = 1; j <= m; j++){
            cin >> t[i][j];
            t[i][j] += t[i][j - 1] + t[i - 1][j] - t[i - 1][j - 1];
        }
    }
    /*
    for (int i = 1; i <= 50; i++){
        for (int j = 1; j <= 50; j++){
            for (int a = 1; a <= 50; a++){
                for (int b = 1; b <= 50; b++){
                    memo[i][j][a][b] = 1000000000;
                }
            }
        }
    }*/
    cout << dp(1, 1, n, m);
    return 0;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 492 KB Output is correct
6 Correct 1 ms 876 KB Output is correct
7 Correct 2 ms 1004 KB Output is correct
8 Correct 15 ms 2668 KB Output is correct
9 Correct 26 ms 3692 KB Output is correct
10 Correct 38 ms 4332 KB Output is correct
11 Correct 32 ms 3820 KB Output is correct
12 Correct 117 ms 7404 KB Output is correct
13 Correct 200 ms 9452 KB Output is correct
14 Correct 53 ms 4844 KB Output is correct
15 Correct 249 ms 10460 KB Output is correct
16 Correct 22 ms 3692 KB Output is correct
17 Correct 103 ms 7276 KB Output is correct
18 Correct 641 ms 16108 KB Output is correct
19 Correct 1024 ms 19692 KB Output is correct
20 Correct 1212 ms 21228 KB Output is correct