oj.uz

Submission #1055955

# Submission time Handle Problem Language Result Execution time Memory
1055955 2024-08-13T06:48:36 Z mychecksedad Catfish Farm (IOI22_fish) C++17
35 / 100
 1000 ms 2097152 KB 
#include "fish.h"
#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define all(x) x.begin(),x.end()
#define ll long long int
#define en cout << '\n'
#define pi pair<int,int>
#define vi vector<int> 
#define ff first
#define ss second
const int N = 3005;

ll dp[N][N], pref[N][N], mx[N], dp2[N][N], suf[N][N], suf2[N][N];
long long max_weights(int n, int m, std::vector<int> X, std::vector<int> Y, std::vector<int> W) {
  vector<vector<ll>> a(n + 1, vector<ll>(n + 1));
  for(int i = 0; i < m; ++i){
    a[X[i]][Y[i] + 1] = W[i];
  }
  for(int i = 0; i < n; ++i){
    pref[i][0] = a[i][0];
    for(int j = 1; j <= n; ++j) pref[i][j] = pref[i][j - 1] + a[i][j];
  }
  for(int i = 0; i <= n; ++i) dp[0][i] = pref[1][i], dp2[0][i] = pref[1][i];
  mx[0] = pref[1][n];
  for(int i = 1; i < n; ++i){
    mx[i] = 0;
    ll mx_pref = 0, mx_pref2 = 0;
    for(int j = 0; j <= n; ++j){
      ll add = pref[i + 1][j] +  pref[i - 1][j];
      dp[i][j] = add;
      if(i > 2) dp[i][j] = max(dp[i][j], mx[i - 3] + add);
      dp2[i][j] = dp[i][j];
    }
    for(int j = 0; j <= n; ++j){
      ll add = pref[i + 1][j] +  pref[i - 1][j];
      // cout << i << ' ' << j << ' ' << add1 << ' ' <<add2 << ' ';
      for(int j2 = 0; j2 <= n; ++j2){
        if(j2 >= j) dp[i][j] = max(dp[i][j], dp[i - 1][j2] + add - pref[i - 1][j] - pref[i][j]);
        else{
          // dp[i][j] = max(dp[i][j],   dp2[i - 1][j2] + add - pref[i - 1][j2] - pref[i][j2]);
          // dp2[i][j] = max(dp2[i][j], dp2[i - 1][j2] + add - pref[i - 1][j2] - pref[i][j2]);
        }
      }
      if(i > 1){
        mx_pref = max(mx_pref, dp[i - 2][j] - pref[i - 1][j]);
        dp[i][j] = max(dp[i][j], mx_pref + add);
        dp[i][j] = max(dp[i][j], suf[i - 2][j] - pref[i - 1][j]);
        dp2[i][j] = max(dp2[i][j], mx_pref + add);
        dp2[i][j] = max(dp2[i][j], suf[i - 2][j] - pref[i - 1][j]);
      }
      mx_pref2 = max(mx_pref2, dp2[i - 1][j] - pref[i - 1][j] - pref[i][j]);
      dp[i][j] = max(dp[i][j], mx_pref2 + add);
      dp2[i][j] = max(dp2[i][j], mx_pref2 + add);
      dp[i][j] = max(dp[i][j], suf[i - 1][j] + add - pref[i][j] - pref[i - 1][j]);

      // cout << dp[i][j] << '\n'; 
    }
    for(int j = 0; j <= n; ++j) mx[i] = max(mx[i], dp[i][j]);
    suf[i][n] = dp[i][n];
    // suf2[i][n] = dp[i][n];
    for(int j = n-1; j >= 0 ;--j) suf[i][j] = max(suf[i][j + 1], dp[i][j]);
    // for(int j = n-1; j >= 0 ;--j) suf2[i][j] = max(suf2[i][j + 1], dp[i][j]);
    // en;
  }
  ll ans = mx[n - 1];

  return ans;
}

Subtask #1
0 / 3.0

# Verdict Execution time Memory Grader output
1 Runtime error 686 ms 2097152 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #2
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Runtime error 696 ms 2097152 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Runtime error 654 ms 2097152 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 3 ms 3676 KB Output is correct
10 Correct 19 ms 8688 KB Output is correct
11 Correct 4 ms 3676 KB Output is correct
12 Correct 21 ms 8688 KB Output is correct
13 Correct 1 ms 1884 KB Output is correct
14 Correct 25 ms 8728 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 3 ms 3676 KB Output is correct
10 Correct 19 ms 8688 KB Output is correct
11 Correct 4 ms 3676 KB Output is correct
12 Correct 21 ms 8688 KB Output is correct
13 Correct 1 ms 1884 KB Output is correct
14 Correct 25 ms 8728 KB Output is correct
15 Correct 24 ms 8608 KB Output is correct
16 Correct 2 ms 1884 KB Output is correct
17 Correct 26 ms 10568 KB Output is correct
18 Correct 26 ms 10420 KB Output is correct
19 Correct 28 ms 10580 KB Output is correct
20 Correct 26 ms 10588 KB Output is correct
21 Correct 26 ms 10560 KB Output is correct
22 Correct 33 ms 12168 KB Output is correct
23 Correct 20 ms 9048 KB Output is correct
24 Correct 23 ms 9820 KB Output is correct
25 Correct 21 ms 8796 KB Output is correct
26 Correct 20 ms 9104 KB Output is correct

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 3 ms 3676 KB Output is correct
10 Correct 19 ms 8688 KB Output is correct
11 Correct 4 ms 3676 KB Output is correct
12 Correct 21 ms 8688 KB Output is correct
13 Correct 1 ms 1884 KB Output is correct
14 Correct 25 ms 8728 KB Output is correct
15 Correct 24 ms 8608 KB Output is correct
16 Correct 2 ms 1884 KB Output is correct
17 Correct 26 ms 10568 KB Output is correct
18 Correct 26 ms 10420 KB Output is correct
19 Correct 28 ms 10580 KB Output is correct
20 Correct 26 ms 10588 KB Output is correct
21 Correct 26 ms 10560 KB Output is correct
22 Correct 33 ms 12168 KB Output is correct
23 Correct 20 ms 9048 KB Output is correct
24 Correct 23 ms 9820 KB Output is correct
25 Correct 21 ms 8796 KB Output is correct
26 Correct 20 ms 9104 KB Output is correct
27 Execution timed out 1030 ms 154732 KB Time limit exceeded
28 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Runtime error 654 ms 2097152 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Runtime error 686 ms 2097152 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -