oj.uz

Submission #1028113

# Submission time Handle Problem Language Result Execution time Memory
1028113 2024-07-19T13:50:09 Z NeroZein Catfish Farm (IOI22_fish) C++17
78 / 100
 1000 ms 49080 KB 
#include "fish.h"
#include <bits/stdc++.h>
#pragma GCC optimize("Ofast,fast-math,unroll-loops")
#pragma GCC target("avx2,fma")
 
using namespace std;

int n; 
vector<vector<long long>> nxt;
vector<vector<long long>> pre;
vector<vector<vector<long long>>> dp;
vector<vector<pair<int, int>>> in_col;
 
long long max_weights(int N, int M, vector<int> X, vector<int> Y, vector<int> W) {
  n = N;
  in_col.resize(N);
  for (int i = 0; i < M; ++i) {
    in_col[X[i]].push_back({Y[i], W[i]});
  }
  for (int i = 0; i < N; ++i) {
    sort(in_col[i].begin(), in_col[i].end());
    in_col[i].push_back({N, 0});
  }
  pre.resize(N);
  for (int col = 1; col < N; ++col) {
    pre[col].resize(in_col[col].size());
    for (int i = 0; i < (int) in_col[col].size(); ++i) {
      int ptr = 0; 
      long long sum = 0; 
      while (ptr < (int) in_col[col - 1].size() && in_col[col - 1][ptr].first < in_col[col][i].first) {
        sum += in_col[col - 1][ptr].second; 
        ptr++; 
      }
      pre[col][i] = sum; 
    }
  }
  nxt.resize(N);
  for (int col = 0; col < N - 1; ++col) {
    nxt[col].resize(in_col[col].size());
    for (int i = 0; i < (int) in_col[col].size(); ++i) {//M tot
      int ptr = 0;
      long long sum = 0;
      while (ptr < (int) in_col[col + 1].size() && in_col[col + 1][ptr].first < in_col[col][i].first) {
        sum += in_col[col + 1][ptr].second;
        ptr++;
      }
      nxt[col][i] = sum; 
    }
  }
  dp.resize(N + 1);
  for (int i = 0; i < N + 1; ++i) {
    dp[i].resize(2);
    dp[i][0].assign(2, -1);
    dp[i][1].assign(2, -1);
  }
  dp[0][0][0] = 0;  
  for (int col = 0; col < N; ++col) {
    int sz = (int) in_col[col].size();
    for (int f = 0; f < 2; ++f) {
      for (int f2 = 0; f2 < 2; ++f2) {
        if (dp[col][f][f2] == -1) {
          continue; 
        }
        if (f) {
          long long s = 0; 
          for (int i = 0; i < sz; ++i) {
            long long w = s;
            if (col < N - 1) {
              w += nxt[col][i];
            }
            dp[col + 1][1][0] = max(dp[col + 1][1][0], dp[col][f][f2] + w);
            s -= in_col[col][i].second; 
          }
          dp[col + 1][0][0] = max(dp[col + 1][0][0], dp[col][f][f2]);
        } else {
          long long s = 0;
          for (int i = 0; i < sz; ++i) {
            long long w = s; 
            if (f2) {
              w += pre[col][i];
            }
            dp[col + 1][0][1] = max(dp[col + 1][0][1], dp[col][f][f2] + w); 
            s -= in_col[col][i].second; 
          }
          s = 0;
          if (col < N - 1) {
            s = nxt[col][sz - 1];
          }
          if (f2) {
            s += pre[col][sz - 1]; 
          }
          dp[col + 1][1][0] = max(dp[col + 1][1][0], dp[col][f][f2] + s);
        }
      }
    }
  }
  long long ans = 0;
  for (int f = 0; f < 2; ++f) {
    for (int f2 = 0; f2 < 2; ++f2) {
      ans = max(ans, dp[n][f][f2]); 
    }
  }
  return ans; 
}

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 48 ms 32708 KB Output is correct
2 Correct 68 ms 36536 KB Output is correct
3 Correct 29 ms 31612 KB Output is correct
4 Correct 30 ms 31580 KB Output is correct
5 Correct 116 ms 49080 KB Output is correct
6 Correct 109 ms 48980 KB Output is correct

Subtask #2
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Execution timed out 1049 ms 14568 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 31688 KB Output is correct
2 Correct 29 ms 31580 KB Output is correct
3 Correct 42 ms 30504 KB Output is correct
4 Correct 39 ms 32896 KB Output is correct
5 Correct 51 ms 34900 KB Output is correct
6 Correct 50 ms 34860 KB Output is correct
7 Correct 67 ms 34896 KB Output is correct
8 Correct 51 ms 34900 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 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 432 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 0 ms 600 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 580 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 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 432 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 0 ms 600 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 580 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 604 KB Output is correct
17 Correct 15 ms 3164 KB Output is correct
18 Correct 14 ms 3268 KB Output is correct
19 Correct 13 ms 3420 KB Output is correct
20 Correct 16 ms 3416 KB Output is correct
21 Correct 13 ms 3420 KB Output is correct
22 Correct 36 ms 6148 KB Output is correct
23 Correct 3 ms 1116 KB Output is correct
24 Correct 9 ms 2396 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 2 ms 860 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 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 432 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 0 ms 600 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 580 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 604 KB Output is correct
17 Correct 15 ms 3164 KB Output is correct
18 Correct 14 ms 3268 KB Output is correct
19 Correct 13 ms 3420 KB Output is correct
20 Correct 16 ms 3416 KB Output is correct
21 Correct 13 ms 3420 KB Output is correct
22 Correct 36 ms 6148 KB Output is correct
23 Correct 3 ms 1116 KB Output is correct
24 Correct 9 ms 2396 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 2 ms 860 KB Output is correct
27 Correct 2 ms 1372 KB Output is correct
28 Correct 99 ms 14100 KB Output is correct
29 Correct 259 ms 16468 KB Output is correct
30 Correct 80 ms 15992 KB Output is correct
31 Correct 82 ms 15952 KB Output is correct
32 Correct 136 ms 17012 KB Output is correct
33 Correct 82 ms 15956 KB Output is correct
34 Correct 105 ms 15952 KB Output is correct
35 Correct 29 ms 6992 KB Output is correct
36 Correct 96 ms 16744 KB Output is correct

Subtask #7
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 31688 KB Output is correct
2 Correct 29 ms 31580 KB Output is correct
3 Correct 42 ms 30504 KB Output is correct
4 Correct 39 ms 32896 KB Output is correct
5 Correct 51 ms 34900 KB Output is correct
6 Correct 50 ms 34860 KB Output is correct
7 Correct 67 ms 34896 KB Output is correct
8 Correct 51 ms 34900 KB Output is correct
9 Correct 49 ms 33876 KB Output is correct
10 Correct 41 ms 19280 KB Output is correct
11 Correct 83 ms 38480 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 29 ms 31576 KB Output is correct
19 Correct 29 ms 31804 KB Output is correct
20 Correct 34 ms 31576 KB Output is correct
21 Correct 30 ms 31708 KB Output is correct
22 Correct 57 ms 34584 KB Output is correct
23 Correct 88 ms 38336 KB Output is correct
24 Correct 80 ms 38480 KB Output is correct

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 48 ms 32708 KB Output is correct
2 Correct 68 ms 36536 KB Output is correct
3 Correct 29 ms 31612 KB Output is correct
4 Correct 30 ms 31580 KB Output is correct
5 Correct 116 ms 49080 KB Output is correct
6 Correct 109 ms 48980 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Execution timed out 1049 ms 14568 KB Time limit exceeded
9 Halted 0 ms 0 KB -