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답안 #940589

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
940589 2024-03-07T11:10:21 Z Sundavar Monster Game (JOI21_monster) C++17
25 / 100
 128 ms 5220 KB 
#include "monster.h"
#include <bits/stdc++.h>
using namespace std;

mt19937 rng(45345345);

vector<vector<int> > m(1000, vector<int>(1000, -1));
bool ask(int a, int b){
  if(m[a][b] == -1){
    m[a][b] = Query(a,b);
    m[b][a] = 1 - m[a][b];
  }
  return m[a][b];
}

vector<int> solve(vector<int> v){
  int N = v.size();
  if(N <= 20){
    vector<pair<int,int> > cnt(N);
    vector<int> amb1, amb2;
    for(int i = 0; i < N; i++){
      cnt[i].second = v[i];
      for(int j = 0; j < i; j++)
        if(j != i){
          if(ask(v[i],v[j])) cnt[i].first++;
          else cnt[j].first++;
        }
    }
    sort(cnt.begin(), cnt.end());
    if(cnt[0].first == cnt[1].first){
      if(!ask(cnt[0].second,cnt[1].second)) swap(cnt[0], cnt[1]);
    }
    if(cnt[1].first == cnt[2].first){
      if(!ask(cnt[1].second,cnt[2].second)) swap(cnt[1], cnt[2]);
    }
    if(cnt[N-2].first == cnt[N-1].first){
      if(!ask(cnt[N-2].second,cnt[N-1].second)) swap(cnt[N-2], cnt[N-1]);
    }
    if(cnt[N-3].first == cnt[N-2].first){
      if(!ask(cnt[N-3].second,cnt[N-2].second)) swap(cnt[N-3], cnt[N-2]);
    }
    vector<int> res;
    for(pair<int,int>& a : cnt) res.push_back(a.second);
    return res;
  }
  vector<int> left, right;
  int m = rng()%N;
  while(true){
    left.clear(), right.clear();
    for(int i = 0; i < N; i++)
      if(i != m){
        if(ask(v[m], v[i])) left.push_back(v[i]);
        else right.push_back(v[i]);
      }
    if(min(left.size(), right.size()) <= 6){
      m = rng()%N;
      continue;
    }
    break;
  }
  left = solve(left), right = solve(right);
  if(!ask(left[left.size()-1], v[m])) swap(left[left.size()-1], right[0]);
  vector<int> res;
  for(int& a : left) res.push_back(a);
  res.push_back(v[m]);
  for(int& a : right) res.push_back(a);
  return res;
}

std::vector<int> Solve(int N) {
  vector<int> v;
  for(int i = 0; i < N ; i++) v.push_back(i);
  v = solve(v);
  vector<int> T(N);
  for(int i = 0; i < N; i++) T[v[i]] = i;
  return T;
}

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4184 KB Output is correct
2 Correct 2 ms 4184 KB Output is correct
3 Correct 2 ms 4340 KB Output is correct
4 Correct 3 ms 4184 KB Output is correct
5 Correct 3 ms 4184 KB Output is correct
6 Correct 2 ms 4184 KB Output is correct
7 Correct 3 ms 4440 KB Output is correct
8 Correct 3 ms 4184 KB Output is correct
9 Correct 2 ms 4184 KB Output is correct
10 Correct 2 ms 4184 KB Output is correct
11 Correct 2 ms 4184 KB Output is correct
12 Correct 2 ms 4184 KB Output is correct
13 Correct 2 ms 4184 KB Output is correct
14 Correct 2 ms 4184 KB Output is correct
15 Correct 3 ms 4184 KB Output is correct
16 Correct 12 ms 4440 KB Output is correct
17 Correct 14 ms 4408 KB Output is correct
18 Correct 10 ms 4696 KB Output is correct
19 Correct 12 ms 4444 KB Output is correct
20 Correct 13 ms 4656 KB Output is correct
21 Correct 2 ms 4184 KB Output is correct
22 Correct 2 ms 4184 KB Output is correct
23 Correct 2 ms 4184 KB Output is correct
24 Correct 3 ms 4184 KB Output is correct
25 Correct 2 ms 4184 KB Output is correct
26 Correct 12 ms 4696 KB Output is correct
27 Correct 2 ms 4436 KB Output is correct
28 Correct 2 ms 4184 KB Output is correct
29 Correct 2 ms 4184 KB Output is correct
30 Correct 4 ms 4184 KB Output is correct
31 Correct 3 ms 4184 KB Output is correct
32 Correct 13 ms 4400 KB Output is correct

Subtask #2
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4184 KB Output is correct
2 Correct 2 ms 4184 KB Output is correct
3 Correct 2 ms 4340 KB Output is correct
4 Correct 3 ms 4184 KB Output is correct
5 Correct 3 ms 4184 KB Output is correct
6 Correct 2 ms 4184 KB Output is correct
7 Correct 3 ms 4440 KB Output is correct
8 Correct 3 ms 4184 KB Output is correct
9 Correct 2 ms 4184 KB Output is correct
10 Correct 2 ms 4184 KB Output is correct
11 Correct 2 ms 4184 KB Output is correct
12 Correct 2 ms 4184 KB Output is correct
13 Correct 2 ms 4184 KB Output is correct
14 Correct 2 ms 4184 KB Output is correct
15 Correct 3 ms 4184 KB Output is correct
16 Correct 12 ms 4440 KB Output is correct
17 Correct 14 ms 4408 KB Output is correct
18 Correct 10 ms 4696 KB Output is correct
19 Correct 12 ms 4444 KB Output is correct
20 Correct 13 ms 4656 KB Output is correct
21 Correct 2 ms 4184 KB Output is correct
22 Correct 2 ms 4184 KB Output is correct
23 Correct 2 ms 4184 KB Output is correct
24 Correct 3 ms 4184 KB Output is correct
25 Correct 2 ms 4184 KB Output is correct
26 Correct 12 ms 4696 KB Output is correct
27 Correct 2 ms 4436 KB Output is correct
28 Correct 2 ms 4184 KB Output is correct
29 Correct 2 ms 4184 KB Output is correct
30 Correct 4 ms 4184 KB Output is correct
31 Correct 3 ms 4184 KB Output is correct
32 Correct 13 ms 4400 KB Output is correct
33 Correct 93 ms 4660 KB Output is correct
34 Correct 67 ms 4960 KB Output is correct
35 Correct 69 ms 4912 KB Output is correct
36 Correct 74 ms 4676 KB Output is correct
37 Correct 71 ms 4672 KB Output is correct
38 Correct 76 ms 4956 KB Output is correct
39 Correct 65 ms 4952 KB Output is correct
40 Correct 61 ms 4952 KB Output is correct
41 Correct 65 ms 4932 KB Output is correct
42 Correct 70 ms 4916 KB Output is correct
43 Correct 74 ms 4964 KB Output is correct
44 Correct 74 ms 5220 KB Output is correct

Subtask #3
0 / 75.0

# 결과 실행 시간 메모리 Grader output
1 Partially correct 63 ms 4908 KB Partially correct
2 Partially correct 70 ms 4928 KB Partially correct
3 Partially correct 73 ms 4684 KB Partially correct
4 Partially correct 81 ms 4652 KB Partially correct
5 Partially correct 64 ms 4956 KB Partially correct
6 Partially correct 81 ms 4924 KB Partially correct
7 Partially correct 71 ms 5164 KB Partially correct
8 Partially correct 62 ms 4664 KB Partially correct
9 Partially correct 79 ms 4904 KB Partially correct
10 Partially correct 99 ms 4676 KB Partially correct
11 Partially correct 80 ms 5160 KB Partially correct
12 Partially correct 75 ms 4920 KB Partially correct
13 Incorrect 128 ms 4900 KB Wrong Answer [6]
14 Halted 0 ms 0 KB -