oj.uz

답안 #654810

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
654810 2022-11-01T17:10:48 Z t6twotwo 메기 농장 (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

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1104 ms 2097152 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 216 KB Output is correct
2 Runtime error 818 ms 2097152 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 786 ms 2097152 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #4
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 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 8 ms 2132 KB Output is correct
11 Correct 2 ms 724 KB Output is correct
12 Correct 8 ms 2132 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 6 ms 2004 KB Output is correct

Subtask #5
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 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 8 ms 2132 KB Output is correct
11 Correct 2 ms 724 KB Output is correct
12 Correct 8 ms 2132 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 6 ms 2004 KB Output is correct
15 Correct 6 ms 2004 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 23 ms 4428 KB Output is correct
18 Correct 20 ms 4868 KB Output is correct
19 Correct 20 ms 4696 KB Output is correct
20 Correct 22 ms 4684 KB Output is correct
21 Correct 20 ms 4692 KB Output is correct
22 Correct 38 ms 7448 KB Output is correct
23 Correct 10 ms 2576 KB Output is correct
24 Correct 14 ms 3668 KB Output is correct
25 Correct 6 ms 2132 KB Output is correct
26 Correct 8 ms 2516 KB Output is correct

Subtask #6
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 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 8 ms 2132 KB Output is correct
11 Correct 2 ms 724 KB Output is correct
12 Correct 8 ms 2132 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 6 ms 2004 KB Output is correct
15 Correct 6 ms 2004 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 23 ms 4428 KB Output is correct
18 Correct 20 ms 4868 KB Output is correct
19 Correct 20 ms 4696 KB Output is correct
20 Correct 22 ms 4684 KB Output is correct
21 Correct 20 ms 4692 KB Output is correct
22 Correct 38 ms 7448 KB Output is correct
23 Correct 10 ms 2576 KB Output is correct
24 Correct 14 ms 3668 KB Output is correct
25 Correct 6 ms 2132 KB Output is correct
26 Correct 8 ms 2516 KB Output is correct
27 Correct 865 ms 154644 KB Output is correct
28 Correct 110 ms 23124 KB Output is correct
29 Correct 971 ms 171236 KB Output is correct
30 Execution timed out 1000 ms 170804 KB Time limit exceeded
31 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 786 ms 2097152 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1104 ms 2097152 KB Time limit exceeded
2 Halted 0 ms 0 KB -