oj.uz

Submission #1055948

# Submission time Handle Problem Language Result Execution time Memory
1055948 2024-08-13T06:46:53 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 677 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 1 ms 348 KB Output is correct
2 Runtime error 665 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 651 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 1 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 444 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 8796 KB Output is correct
11 Correct 3 ms 3676 KB Output is correct
12 Correct 19 ms 8796 KB Output is correct
13 Correct 1 ms 1884 KB Output is correct
14 Correct 20 ms 8684 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 444 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 8796 KB Output is correct
11 Correct 3 ms 3676 KB Output is correct
12 Correct 19 ms 8796 KB Output is correct
13 Correct 1 ms 1884 KB Output is correct
14 Correct 20 ms 8684 KB Output is correct
15 Correct 21 ms 8796 KB Output is correct
16 Correct 2 ms 1884 KB Output is correct
17 Correct 26 ms 10388 KB Output is correct
18 Correct 25 ms 10324 KB Output is correct
19 Correct 25 ms 10328 KB Output is correct
20 Correct 29 ms 10272 KB Output is correct
21 Correct 26 ms 10324 KB Output is correct
22 Correct 33 ms 11860 KB Output is correct
23 Correct 20 ms 8940 KB Output is correct
24 Correct 23 ms 9816 KB Output is correct
25 Correct 19 ms 8784 KB Output is correct
26 Correct 20 ms 9040 KB Output is correct

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 444 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 8796 KB Output is correct
11 Correct 3 ms 3676 KB Output is correct
12 Correct 19 ms 8796 KB Output is correct
13 Correct 1 ms 1884 KB Output is correct
14 Correct 20 ms 8684 KB Output is correct
15 Correct 21 ms 8796 KB Output is correct
16 Correct 2 ms 1884 KB Output is correct
17 Correct 26 ms 10388 KB Output is correct
18 Correct 25 ms 10324 KB Output is correct
19 Correct 25 ms 10328 KB Output is correct
20 Correct 29 ms 10272 KB Output is correct
21 Correct 26 ms 10324 KB Output is correct
22 Correct 33 ms 11860 KB Output is correct
23 Correct 20 ms 8940 KB Output is correct
24 Correct 23 ms 9816 KB Output is correct
25 Correct 19 ms 8784 KB Output is correct
26 Correct 20 ms 9040 KB Output is correct
27 Execution timed out 1109 ms 154620 KB Time limit exceeded
28 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Runtime error 651 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 677 ms 2097152 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -