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Submission #643980

# Submission time Handle Problem Language Result Execution time Memory
643980 2022-09-23T11:34:32 Z NintsiChkhaidze Catfish Farm (IOI22_fish) C++17
0 / 100
 255 ms 24132 KB 
#include "fish.h"
#include <bits/stdc++.h>
#define ll long long
using namespace std;
 
const int N = 1005;
ll p[N][N],dp[N][N][5],suff[N][N];
 
ll max_weights(int n, int m, vector<int> X, vector<int> Y, vector<int> W) {
 
  for (int i = 0;i < m; i++){
    X[i]++,Y[i]++;
    p[X[i]][Y[i]] += W[i];
  }
 
  for (int j = 1; j <= n; j++)
    for (int i = 1; i <= n; i++)
      p[j][i] += p[j][i - 1];
 
  for (int j = 2; j <= n; j++){
    for (int a = 0; a <= n; a++){
      
      //update dp[j][a][0]
      for (int b = a; b <= n; b++){
        // ll v = max(dp[j - 1][b][0],dp[j - 1][b][1]) + p[j][b];
        ll v = suff[j - 1][b];
        
        dp[j][a][0] = max(dp[j][a][0], v - p[j][a]);
      }
 
      //update dp[j][a][1]
      for (int b = 0; b <= a; b++){
        ll v = dp[j - 1][b][1] - p[j - 1][b];
        //v = pref[j - 1][b]
        
        dp[j][a][1] = max(dp[j][a][1], v + p[j - 1][a]);
      }
      
      //c 0 a
      if (j >= 3){
        for (int c = 0; c <= n; c++){
          ll v = max(dp[j - 2][c][0],dp[j - 2][c][1]);
          dp[j][a][1] = max(dp[j][a][1], v + p[j - 1][max(a,c)]);
        }
      }
      
    }

    for (int a = n; a >= 0; a--)
        suff[j][a] = max(suff[j][a+1],max(dp[j][a][0],dp[j][a][1]) + p[j + 1][a]);
  }
 
  ll ans = 0;
  for (int a = 0; a <= n; a++)
      ans=max(ans,max(dp[n][a][0],dp[n][a][1]));
  return ans;
}

Subtask #1
0 / 3.0

# Verdict Execution time Memory Grader output
1 Runtime error 225 ms 20172 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #2
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Runtime error 255 ms 24132 KB Execution killed with signal 11
3 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Runtime error 219 ms 16392 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Incorrect 0 ms 212 KB 1st lines differ - on the 1st token, expected: '4044', found: '2022'
4 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Incorrect 0 ms 212 KB 1st lines differ - on the 1st token, expected: '4044', found: '2022'
4 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Incorrect 0 ms 212 KB 1st lines differ - on the 1st token, expected: '4044', found: '2022'
4 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Runtime error 219 ms 16392 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Runtime error 225 ms 20172 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -