oj.uz

Submission #654811

# Submission time Handle Problem Language Result Execution time Memory
654811 2022-11-01T17:13:04 Z t6twotwo Catfish Farm (IOI22_fish) C++17
35 / 100
 1000 ms 2097152 KB 
#include "fish.h"
#include <bits/stdc++.h>
using namespace std;
const long long inf = -(1LL << 50);
long long max_weights(int n, int m, vector<int> x, vector<int> y, vector<int> w) {
  vector P(n, vector<int>(n + 1));
  for (int i = 0; i < m; i++) {
    P[x[i]][y[i] + 1] = w[i];
  }
  vector s(n, vector<long long>(n + 2));
  for (int i = 0; i < n; i++) {
    for (int j = 0; j <= n; j++) {
      s[i][j + 1] = s[i][j] + P[i][j];
    }
  }
  auto range_sum = [&](int i, int l, int r) -> long long {
    if (i == -1) {
      return 0;
    }
    return s[i][r + 1] - s[i][l + 1];
  };
  vector<vector<int>> b(n);
  for (int i = 0; i < m; i++) {
    b[x[i]].push_back(i);
  }
  vector d(n, vector<int>{0});
  for (int i = 0; i < n; i++) {
    for (int j = 1; j <= n; j++) {
      d[i].push_back(j);
    }
  }
  // vector<vector<int>> r(n), p(n);
  // for (int i = 0; i < n; i++) {
  //   sort(b[i].begin(), b[i].end(), [&](int j, int k) {
  //     return y[j] < y[k];
  //   });
  //   for (int j : b[i]) {
  //     r[i].push_back(y[j] + 1);
  //     p[i].push_back(w[j]);
  //     if (i > 0) {
  //       // d[i - 1].push_back(y[j] + 1);
  //     }
  //     if (i < n - 1) {
  //       // d[i + 1].push_back(y[j] + 1);
  //     }
  //   }
  // }
  // vector<vector<long long>> ssum(n), psum(n);
  // for (int i = 0; i < n; i++) {
  //   int k = p[i].size();
  //   psum[i] = vector<long long>(k + 1);
  //   ssum[i] = vector<long long>(k + 1);
  //   for (int j = 0; j < k; j++) {
  //     psum[i][j + 1] = psum[i][j] + p[i][j];
  //   }
  //   for (int j = k - 1; j >= 0; j--) {
  //     ssum[i][j] = ssum[i][j + 1] + p[i][j];
  //   }
  // }
  // auto suf_sum = [&](int i, int x) -> long long {
  //   if (i == -1) {
  //     return 0;
  //   }
  //   long long ans = 0;
  //   for (int j = 0; j < p[i].size(); j++) {
  //     if (r[i][j] > x) {
  //       ans += p[i][j];
  //     }
  //   }
  //   return ans;
  //   return ssum[i][upper_bound(r[i].begin(), r[i].end(), x) - r[i].begin()];
  // };
  // auto pre_sum = [&](int i, int x) -> long long {
  //   if (i == -1) {
  //     return 0;
  //   }
  //   long long ans = 0;
  //   for (int j = 0; j < p[i].size(); j++) {
  //     if (r[i][j] <= x) {
  //       ans += p[i][j];
  //     }
  //   }
  //   return ans;
  //   return psum[i][upper_bound(r[i].begin(), r[i].end(), x) - r[i].begin()];
  // };
  vector<int> e{0};
  vector<array<long long, 2>> dp{{0, 0}};
  for (int i = 0; i < n; i++) {
    auto pd = dp;
    int l = d[i].size();
    dp = vector(l, array<long long, 2>{inf, inf});
    int k = pd.size();
    vector<long long> pmax(k + 1, inf);
    for (int j = 0; j < k; j++) {
      pmax[j + 1] = max(pmax[j], pd[j][0] + range_sum(i - 1, e[j], n)); //suf_sum(i - 1, e[j]));
    }
    vector<long long> smax(k + 1, inf);
    for (int j = k - 1; j >= 0; j--) {
      smax[j] = max(smax[j + 1], max(pd[j][0], pd[j][1]) - range_sum(i, e[j], n)); //suf_sum(i, e[j]));
    }
    for (int j = 0; j < k; j++) {
      dp[0][0] = max(dp[0][0], max(pd[j][0], pd[j][1]));
      dp[0][1] = max(dp[0][1], max(pd[j][0], pd[j][1]) + range_sum(i, 0, e[j])); //pre_sum(i, e[j]));
    }
    for (int j = 1; j < l; j++) {
      dp[j][0] = max({dp[j][0], max(pd[0][1], pd[0][0] + range_sum(i - 1, 0, d[i][j]) /*pre_sum(i - 1, d[i][j])*/), pmax[upper_bound(e.begin(), e.end(), d[i][j]) - e.begin()] - range_sum(i - 1, d[i][j], n)}); //suf_sum(i - 1, d[i][j])});
      dp[j][1] = max({dp[j][1], max(pd[0][1], pd[0][0] + range_sum(i - 1, 0, d[i][j]) /*pre_sum(i - 1, d[i][j])*/), smax[lower_bound(e.begin(), e.end(), d[i][j]) - e.begin()] + range_sum(i, d[i][j], n)}); //suf_sum(i, d[i][j])});
    }
    swap(e, d[i]);
  }
  long long ans = inf;
  for (auto v : dp) {
    ans = max(ans, max(v[0], v[1]));
  }
  return ans;
}

Subtask #1
0 / 3.0

# Verdict Execution time Memory Grader output
1 Runtime error 814 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 212 KB Output is correct
2 Runtime error 787 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 758 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 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 2 ms 724 KB Output is correct
10 Correct 6 ms 2004 KB Output is correct
11 Correct 2 ms 724 KB Output is correct
12 Correct 5 ms 2004 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 5 ms 2004 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 2 ms 724 KB Output is correct
10 Correct 6 ms 2004 KB Output is correct
11 Correct 2 ms 724 KB Output is correct
12 Correct 5 ms 2004 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 5 ms 2004 KB Output is correct
15 Correct 6 ms 2004 KB Output is correct
16 Correct 2 ms 468 KB Output is correct
17 Correct 18 ms 3284 KB Output is correct
18 Correct 18 ms 3392 KB Output is correct
19 Correct 17 ms 3444 KB Output is correct
20 Correct 17 ms 3412 KB Output is correct
21 Correct 17 ms 3400 KB Output is correct
22 Correct 29 ms 4852 KB Output is correct
23 Correct 8 ms 2260 KB Output is correct
24 Correct 13 ms 2828 KB Output is correct
25 Correct 5 ms 2004 KB Output is correct
26 Correct 7 ms 2260 KB Output is correct

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 2 ms 724 KB Output is correct
10 Correct 6 ms 2004 KB Output is correct
11 Correct 2 ms 724 KB Output is correct
12 Correct 5 ms 2004 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 5 ms 2004 KB Output is correct
15 Correct 6 ms 2004 KB Output is correct
16 Correct 2 ms 468 KB Output is correct
17 Correct 18 ms 3284 KB Output is correct
18 Correct 18 ms 3392 KB Output is correct
19 Correct 17 ms 3444 KB Output is correct
20 Correct 17 ms 3412 KB Output is correct
21 Correct 17 ms 3400 KB Output is correct
22 Correct 29 ms 4852 KB Output is correct
23 Correct 8 ms 2260 KB Output is correct
24 Correct 13 ms 2828 KB Output is correct
25 Correct 5 ms 2004 KB Output is correct
26 Correct 7 ms 2260 KB Output is correct
27 Correct 907 ms 154008 KB Output is correct
28 Correct 96 ms 16716 KB Output is correct
29 Correct 980 ms 162928 KB Output is correct
30 Execution timed out 1002 ms 162620 KB Time limit exceeded
31 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Runtime error 758 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 814 ms 2097152 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -