oj.uz

Submission #827106

# Submission time Handle Problem Language Result Execution time Memory
827106 2023-08-16T08:46:55 Z erray Carnival Tickets (IOI20_tickets) C++17
100 / 100
 579 ms 76008 KB 
#include "tickets.h"
#include <vector>
#include <bits/stdc++.h>
 
using namespace std;
 
#ifdef DEBUG
  #include "/home/eagle/ioi19/day2/debug.h"
#else 
  #define debug(...) void(37)
#endif
 
long long find_maximum(int K, std::vector<std::vector<int>> X) {
  int N = int(X.size());
  int M = int(X[0].size());
  long long ans = 0;
  for (int i = 0; i < N; ++i) {
    for (int j = 0; j < K; ++j) {
      ans += X[i][M - 1 - j];
    }
  }
  priority_queue<pair<int, int>> pq;
  vector<int> pt(N);
  for (int i = 0; i < N; ++i) {
    pq.emplace(-X[i][0] - X[i][M - K], i);
  }
  int half = N * K / 2;
  while (half--) {
    auto[add, i] = pq.top();
    pq.pop();
    ans += add;
    ++pt[i];
    if (pt[i] < K) {
      pq.emplace(-X[i][pt[i]] - X[i][M - K + pt[i]], i);
    }
  }
  assert(accumulate(pt.begin(), pt.end(), 0) == N * K / 2);
  vector<int> big_pt(N);
  for (int i = 0; i < N; ++i) {
    big_pt[i] = K - pt[i];
  }
  vector<vector<int>> s(N, vector<int>(M, -1));
  for (int t = 0; t < K; ++t) {
    vector<int> bigs, smalls;
    vector<bool> used(N);
    for (int i = 0; i < N; ++i) {
      used[i] = true;
      if (pt[i] == K - t) {
        --pt[i];
        s[i][pt[i]] = t;
        smalls.push_back(X[i][pt[i]]);
      } else if (big_pt[i] == K - t) {
        s[i][M - big_pt[i]] = t;
        bigs.push_back(X[i][M - big_pt[i]]);
        --big_pt[i];
      } else {
        used[i] = false;
      }
    }
    for (int i = 0; i < N; ++i) {
      if (used[i]) continue;
      if (pt[i] > 0 && int(smalls.size()) < N / 2) {
        --pt[i];
        s[i][pt[i]] = t;
        smalls.push_back(X[i][pt[i]]);
      } else {
        s[i][M - big_pt[i]] = t;
        bigs.push_back(X[i][M - big_pt[i]]);
        --big_pt[i];
      }
    }
    assert(int(smalls.size()) <= N / 2);
    assert(*max_element(smalls.begin(), smalls.end()) <= *min_element(bigs.begin(), bigs.end()));
  }
  allocate_tickets(s);
  debug(ans);
  return ans;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory 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 340 KB Output is correct
6 Correct 1 ms 724 KB Output is correct

Subtask #2
16.0 / 16.0

# Verdict Execution time Memory 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 1 ms 340 KB Output is correct
5 Correct 16 ms 2388 KB Output is correct
6 Correct 400 ms 51452 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 296 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 2 ms 340 KB Output is correct
5 Correct 15 ms 2532 KB Output is correct
6 Correct 386 ms 56760 KB Output is correct
7 Correct 398 ms 57072 KB Output is correct
8 Correct 2 ms 440 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 4 ms 852 KB Output is correct
13 Correct 20 ms 2132 KB Output is correct
14 Correct 18 ms 2096 KB Output is correct
15 Correct 416 ms 57684 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory 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 2 ms 468 KB Output is correct
5 Correct 24 ms 3208 KB Output is correct
6 Correct 4 ms 724 KB Output is correct
7 Correct 4 ms 980 KB Output is correct
8 Correct 532 ms 75924 KB Output is correct
9 Correct 499 ms 70932 KB Output is correct
10 Correct 494 ms 71068 KB Output is correct
11 Correct 579 ms 76008 KB Output is correct

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 2 ms 340 KB Output is correct
4 Correct 2 ms 468 KB Output is correct
5 Correct 2 ms 468 KB Output is correct
6 Correct 2 ms 468 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 304 KB Output is correct
9 Correct 2 ms 468 KB Output is correct
10 Correct 2 ms 444 KB Output is correct
11 Correct 2 ms 468 KB Output is correct
12 Correct 2 ms 468 KB Output is correct

Subtask #6
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 2 ms 340 KB Output is correct
4 Correct 2 ms 468 KB Output is correct
5 Correct 2 ms 468 KB Output is correct
6 Correct 2 ms 468 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 304 KB Output is correct
9 Correct 2 ms 468 KB Output is correct
10 Correct 2 ms 444 KB Output is correct
11 Correct 2 ms 468 KB Output is correct
12 Correct 2 ms 468 KB Output is correct
13 Correct 17 ms 3156 KB Output is correct
14 Correct 17 ms 3256 KB Output is correct
15 Correct 18 ms 3276 KB Output is correct
16 Correct 20 ms 3288 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 2 ms 468 KB Output is correct
19 Correct 2 ms 308 KB Output is correct
20 Correct 19 ms 2608 KB Output is correct
21 Correct 18 ms 3068 KB Output is correct
22 Correct 18 ms 2644 KB Output is correct
23 Correct 20 ms 3152 KB Output is correct

Subtask #7
10.0 / 10.0

# Verdict Execution time Memory 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 340 KB Output is correct
6 Correct 1 ms 724 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 16 ms 2388 KB Output is correct
12 Correct 400 ms 51452 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 296 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 2 ms 340 KB Output is correct
17 Correct 15 ms 2532 KB Output is correct
18 Correct 386 ms 56760 KB Output is correct
19 Correct 398 ms 57072 KB Output is correct
20 Correct 2 ms 440 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 4 ms 852 KB Output is correct
25 Correct 20 ms 2132 KB Output is correct
26 Correct 18 ms 2096 KB Output is correct
27 Correct 416 ms 57684 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 2 ms 468 KB Output is correct
32 Correct 24 ms 3208 KB Output is correct
33 Correct 4 ms 724 KB Output is correct
34 Correct 4 ms 980 KB Output is correct
35 Correct 532 ms 75924 KB Output is correct
36 Correct 499 ms 70932 KB Output is correct
37 Correct 494 ms 71068 KB Output is correct
38 Correct 579 ms 76008 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 1 ms 340 KB Output is correct
41 Correct 2 ms 340 KB Output is correct
42 Correct 2 ms 468 KB Output is correct
43 Correct 2 ms 468 KB Output is correct
44 Correct 2 ms 468 KB Output is correct
45 Correct 1 ms 212 KB Output is correct
46 Correct 1 ms 304 KB Output is correct
47 Correct 2 ms 468 KB Output is correct
48 Correct 2 ms 444 KB Output is correct
49 Correct 2 ms 468 KB Output is correct
50 Correct 2 ms 468 KB Output is correct
51 Correct 17 ms 3156 KB Output is correct
52 Correct 17 ms 3256 KB Output is correct
53 Correct 18 ms 3276 KB Output is correct
54 Correct 20 ms 3288 KB Output is correct
55 Correct 1 ms 340 KB Output is correct
56 Correct 2 ms 468 KB Output is correct
57 Correct 2 ms 308 KB Output is correct
58 Correct 19 ms 2608 KB Output is correct
59 Correct 18 ms 3068 KB Output is correct
60 Correct 18 ms 2644 KB Output is correct
61 Correct 20 ms 3152 KB Output is correct
62 Correct 47 ms 8388 KB Output is correct
63 Correct 46 ms 8336 KB Output is correct
64 Correct 56 ms 8520 KB Output is correct
65 Correct 203 ms 33104 KB Output is correct
66 Correct 227 ms 33628 KB Output is correct
67 Correct 4 ms 980 KB Output is correct
68 Correct 4 ms 800 KB Output is correct
69 Correct 415 ms 73056 KB Output is correct
70 Correct 468 ms 74012 KB Output is correct
71 Correct 546 ms 75896 KB Output is correct
72 Correct 455 ms 60516 KB Output is correct
73 Correct 516 ms 73220 KB Output is correct
74 Correct 425 ms 59040 KB Output is correct
75 Correct 466 ms 71776 KB Output is correct