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Submission #346493

# Submission time Handle Problem Language Result Execution time Memory
346493 2021-01-10T01:22:48 Z MilosMilutinovic Raisins (IOI09_raisins) C++14
100 / 100
 2053 ms 58800 KB 
/**
 *  author: milos
 *  created: 10.01.2021 02:07:32
**/
#include <bits/stdc++.h>

using namespace std;

const int N = 51;

int n, m;
vector<vector<int>> a(N, vector<int>(N));
vector<vector<vector<vector<long long>>>> dp(N, vector<vector<vector<long long>>>(N, vector<vector<long long>>(N, vector<long long>(N, 0))));

long long Calc(int x1, int y1, int x2, int y2) {
  if (x1 == x2 && y1 == y2) {
    return 0LL;
  }
  if (dp[x1][y1][x2][y2] != 0) {
    return dp[x1][y1][x2][y2]; 
  }            
  //cout << x1 << " " << y1 << " " << x2 << " " << y2 << '\n';  
  long long ans = 1e18, sum = 0;
  for (int i = x1; i <= x2; i++) {
    for (int j = y1; j <= y2; j++) {
      sum += a[i][j];
    }
  }
  for (int i = x1 + 1; i <= x2; i++) {
    ans = min(ans, Calc(x1, y1, i - 1, y2) + Calc(i, y1, x2, y2)); 
  }
  for (int i = y1 + 1; i <= y2; i++) {
    ans = min(ans, Calc(x1, y1, x2, i - 1) + Calc(x1, i, x2, y2)); 
  }
  ans += sum;
  dp[x1][y1][x2][y2] = ans;
  return ans;
}
    
int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  cin >> n >> m;
  for (int i = 0; i < n; i++) {
    for (int j = 0; j < m; j++) {
      cin >> a[i][j];
    }
  }                     
  cout << Calc(0, 0, n - 1, m - 1) << '\n';
  return 0;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 41 ms 58604 KB Output is correct
2 Correct 42 ms 58604 KB Output is correct
3 Correct 42 ms 58604 KB Output is correct
4 Correct 42 ms 58604 KB Output is correct
5 Correct 42 ms 58604 KB Output is correct
6 Correct 43 ms 58732 KB Output is correct
7 Correct 44 ms 58604 KB Output is correct
8 Correct 59 ms 58604 KB Output is correct
9 Correct 71 ms 58604 KB Output is correct
10 Correct 89 ms 58732 KB Output is correct
11 Correct 77 ms 58604 KB Output is correct
12 Correct 209 ms 58604 KB Output is correct
13 Correct 344 ms 58604 KB Output is correct
14 Correct 104 ms 58604 KB Output is correct
15 Correct 420 ms 58716 KB Output is correct
16 Correct 69 ms 58604 KB Output is correct
17 Correct 190 ms 58800 KB Output is correct
18 Correct 1081 ms 58716 KB Output is correct
19 Correct 1757 ms 58736 KB Output is correct
20 Correct 2053 ms 58604 KB Output is correct