oj.uz

Submission #419454

# Submission time Handle Problem Language Result Execution time Memory
419454 2021-06-07T06:56:59 Z model_code Monster Game (JOI21_monster) C++17
100 / 100
 125 ms 304 KB 
#include <bits/stdc++.h>

#include "monster.h"
using namespace std;

namespace {
mt19937 mt(0x0606);

vector<int> stupid(vector<int> v) {
  int N = v.size();
  vector<vector<bool>> res(N, vector<bool>(N, false));
  for (int i = 0; i < N; i++)
    for (int j = i + 1; j < N; j++)
      res[j][i] = !(res[i][j] = Query(v[i], v[j]));
  vector<pair<int, int>> cnt(N);
  for (int i = 0; i < N; i++)
    cnt[i] = {count(res[i].begin(), res[i].end(), true), v[i]};
  sort(cnt.begin(), cnt.end());
  for (int i = 0; i < N; i++) v[i] = cnt[i].second;
  if (Query(v[1], v[0])) swap(v[0], v[1]);
  if (Query(v[N - 1], v[N - 2])) swap(v[N - 2], v[N - 1]);
  return v;
}

vector<int> merge_sort(vector<int> v) {
  if (v.size() == 1) return v;
  shuffle(v.begin(), v.end(), mt);
  int m = v.size() / 2;
  vector<int> l(v.begin(), v.begin() + m), r(v.begin() + m, v.end());
  l = merge_sort(l);
  r = merge_sort(r);

  int i = 0, j = 0;
  for (int k = 0; k < v.size(); k++) {
    if (i == l.size())
      v[k] = r[j++];
    else if (j == r.size())
      v[k] = l[i++];
    else if (Query(l[i], r[j]))
      v[k] = r[j++];
    else
      v[k] = l[i++];
  }
  return v;
}
}  // namespace

vector<int> Solve(int N) {
  vector<int> v(N);
  for (int i = 0; i < N; i++) v[i] = i;
  v = merge_sort(v);

  vector<int> s(v.begin(), v.begin() + min(10, N));
  s = stupid(s);
  int b = s[0];
  v.erase(find(v.begin(), v.end(), b));
  v.insert(v.begin(), b);

  for (int i = 1; i < N; i++) {
    int j = i;
    while (j < N && Query(v[j], b)) j++;
    reverse(v.begin() + i, v.begin() + min(j + 1, N));
    b = v[i = j];
  }

  vector<int> S(N);
  for (int i = 0; i < N; i++) S[v[i]] = i;
  return S;
}

Compilation message

monster.cpp: In function 'std::vector<int> {anonymous}::merge_sort(std::vector<int>)':
monster.cpp:34:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |   for (int k = 0; k < v.size(); k++) {
      |                   ~~^~~~~~~~~~
monster.cpp:35:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |     if (i == l.size())
      |         ~~^~~~~~~~~~~
monster.cpp:37:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   37 |     else if (j == r.size())
      |              ~~^~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Output is correct
2 Correct 1 ms 228 KB Output is correct
3 Correct 1 ms 200 KB Output is correct
4 Correct 1 ms 200 KB Output is correct
5 Correct 1 ms 200 KB Output is correct
6 Correct 1 ms 200 KB Output is correct
7 Correct 1 ms 200 KB Output is correct
8 Correct 1 ms 200 KB Output is correct
9 Correct 1 ms 200 KB Output is correct
10 Correct 1 ms 200 KB Output is correct
11 Correct 1 ms 200 KB Output is correct
12 Correct 1 ms 256 KB Output is correct
13 Correct 1 ms 256 KB Output is correct
14 Correct 1 ms 200 KB Output is correct
15 Correct 1 ms 200 KB Output is correct
16 Correct 18 ms 200 KB Output is correct
17 Correct 16 ms 200 KB Output is correct
18 Correct 20 ms 200 KB Output is correct
19 Correct 7 ms 200 KB Output is correct
20 Correct 15 ms 200 KB Output is correct
21 Correct 1 ms 200 KB Output is correct
22 Correct 1 ms 200 KB Output is correct
23 Correct 1 ms 200 KB Output is correct
24 Correct 1 ms 200 KB Output is correct
25 Correct 1 ms 200 KB Output is correct
26 Correct 20 ms 200 KB Output is correct
27 Correct 1 ms 200 KB Output is correct
28 Correct 1 ms 200 KB Output is correct
29 Correct 1 ms 200 KB Output is correct
30 Correct 1 ms 200 KB Output is correct
31 Correct 1 ms 200 KB Output is correct
32 Correct 16 ms 200 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Output is correct
2 Correct 1 ms 228 KB Output is correct
3 Correct 1 ms 200 KB Output is correct
4 Correct 1 ms 200 KB Output is correct
5 Correct 1 ms 200 KB Output is correct
6 Correct 1 ms 200 KB Output is correct
7 Correct 1 ms 200 KB Output is correct
8 Correct 1 ms 200 KB Output is correct
9 Correct 1 ms 200 KB Output is correct
10 Correct 1 ms 200 KB Output is correct
11 Correct 1 ms 200 KB Output is correct
12 Correct 1 ms 256 KB Output is correct
13 Correct 1 ms 256 KB Output is correct
14 Correct 1 ms 200 KB Output is correct
15 Correct 1 ms 200 KB Output is correct
16 Correct 18 ms 200 KB Output is correct
17 Correct 16 ms 200 KB Output is correct
18 Correct 20 ms 200 KB Output is correct
19 Correct 7 ms 200 KB Output is correct
20 Correct 15 ms 200 KB Output is correct
21 Correct 1 ms 200 KB Output is correct
22 Correct 1 ms 200 KB Output is correct
23 Correct 1 ms 200 KB Output is correct
24 Correct 1 ms 200 KB Output is correct
25 Correct 1 ms 200 KB Output is correct
26 Correct 20 ms 200 KB Output is correct
27 Correct 1 ms 200 KB Output is correct
28 Correct 1 ms 200 KB Output is correct
29 Correct 1 ms 200 KB Output is correct
30 Correct 1 ms 200 KB Output is correct
31 Correct 1 ms 200 KB Output is correct
32 Correct 16 ms 200 KB Output is correct
33 Correct 107 ms 200 KB Output is correct
34 Correct 56 ms 200 KB Output is correct
35 Correct 44 ms 304 KB Output is correct
36 Correct 60 ms 200 KB Output is correct
37 Correct 98 ms 200 KB Output is correct
38 Correct 106 ms 200 KB Output is correct
39 Correct 104 ms 200 KB Output is correct
40 Correct 125 ms 200 KB Output is correct
41 Correct 115 ms 200 KB Output is correct
42 Correct 99 ms 288 KB Output is correct
43 Correct 89 ms 200 KB Output is correct
44 Correct 109 ms 200 KB Output is correct

Subtask #3
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 105 ms 200 KB Output is correct
2 Correct 101 ms 200 KB Output is correct
3 Correct 108 ms 200 KB Output is correct
4 Correct 115 ms 256 KB Output is correct
5 Correct 115 ms 200 KB Output is correct
6 Correct 96 ms 200 KB Output is correct
7 Correct 88 ms 200 KB Output is correct
8 Correct 117 ms 200 KB Output is correct
9 Correct 107 ms 292 KB Output is correct
10 Correct 111 ms 200 KB Output is correct
11 Correct 96 ms 200 KB Output is correct
12 Correct 117 ms 200 KB Output is correct
13 Correct 54 ms 200 KB Output is correct
14 Correct 83 ms 200 KB Output is correct
15 Correct 57 ms 200 KB Output is correct
16 Correct 70 ms 200 KB Output is correct
17 Correct 52 ms 200 KB Output is correct
18 Correct 70 ms 200 KB Output is correct