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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#745800#9432. PermutationchroneZRE 1ms3844kbC++172.1kb2024-11-14 11:42:452024-11-14 11:42:45

Judging History

你现在查看的是最新测评结果

  • [2024-11-14 11:42:45]
  • 评测
  • 测评结果:RE
  • 用时:1ms
  • 内存:3844kb
  • [2024-11-14 11:42:45]
  • 提交

answer

// Such a destiny was not desired.
#include <bits/stdc++.h>
using namespace std;
using ll = long long;

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
constexpr int N = 1e3 + 5;
int n, p[N];

inline int ask(int m, int x, int y) {
  cout << 0 << " ";
  for(int i = 1; i <= m; i++) cout << x << " ";
  for(int i = m + 1; i <= n; i++) cout << y << " ";
  cout << endl;
  int ret; cin >> ret;
  return ret;
}

struct DUS {
  int f[N];
  inline void init(int n) {iota(f + 1, f + n + 1, 1);}
  inline int find(int x) {while(x != f[x]) x = f[x] = f[f[x]]; return x;}
  inline void merge(int x, int y) {
    x = find(x), y = find(y);
    f[y] = x;
  }
} D;

int g[N];
void solve(int l, int r, vector<int> S) {
  if(l == r) return p[l] = S[0], void();
  int m = l + r >> 1;
  vector<int> o = S;

  vector<int> L, R;
  while(S.size() > 1) {
    int itx = rng() % S.size(), ity = rng() % S.size();
    while(itx == ity) itx = rng() % S.size(), ity = rng() % S.size();
    int x = S[itx], y = S[ity];

    int e = ask(m, x, y);
    if(e == 0) {
      g[x] = 1, g[y] = 0;
      if(itx < ity) swap(itx, ity);
      S.erase(S.begin() + itx), S.erase(S.begin() + ity);
    } else if(e == 2) {
      g[x] = 0, g[y] = 1;
      if(itx < ity) swap(itx, ity);
      S.erase(S.begin() + itx), S.erase(S.begin() + ity);
    } else {
      D.merge(x, y);
      S.erase(S.begin() + ity);
    }
  }
  if(S.size() == 1) {
    int x = -1;
    for(auto y : o) {
      if(y != S[0]) {
        x = y;
        break;
      }
    }
    int e = ask(m, S[0], x);
    if(e == 0) g[S[0]] = 1;
    else if(e == 2) g[S[0]] = 0;
    else D.merge(x, S[0]);
  }

  for(auto x : o) {
    g[x] = g[D.find(x)];
    if(g[x] == 0) L.push_back(x);
    else R.push_back(x);
  }
  for(auto x : o) {
    D.f[x] = x;
  }
  solve(l, m, L);
  solve(m + 1, r, R);
}

int main() {
  // ios::sync_with_stdio(false);
  // cin.tie(nullptr), cout.tie(nullptr);
  
  cin >> n;
  vector<int> U(n);
  iota(U.begin(), U.end(), 1);
  D.init(n);
  solve(1, n, U);
  cout << 1 << " ";
  for(int i = 1; i <= n; i++) cout << p[i] << " ";
  cout << endl;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 1ms
memory: 3844kb

input:

5
1
0
1
2
2
2
0
0

output:

0 1 1 1 5 5 
0 1 1 1 3 3 
0 2 2 2 4 4 
0 2 2 2 1 1 
0 3 3 2 2 2 
0 4 4 2 2 2 
0 4 3 3 3 3 
0 5 5 5 5 1 
1 3 4 2 1 5 

result:

ok Accepted

Test #2:

score: -100
Runtime Error

input:

1000
2
1
1
0
1
1
1
0
0
2
2
1
1
1
0
2
2
0
1
1
0
1
0
1
2
1
1
1
1
1
2
2
1
2
0
1
0
0
0
1
2
1
1
2
1
1
1
1
2
2
0
1
1
1
1
0
1
1
2
2
2
2
1
2
1
1
1
1
1
0
1
1
1
1
2
1
2
0
0
2
1
2
2
1
1
1
0
0
1
2
2
1
1
1
1
1
2
1
2
2
0
1
1
1
2
0
0
0
2
1
2
1
2
1
1
1
0
2
1
2
1
1
1
1
0
1
1
1
2
1
0
2
0
1
1
0
1
1
1
1
1
1
1
0
1
0
2
0...

output:

0 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 837 83...

result: