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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#745822#9432. PermutationchroneZWA 48ms3620kbC++172.3kb2024-11-14 11:48:402024-11-14 11:48:41

Judging History

你现在查看的是最新测评结果

  • [2024-11-14 11:48:41]
  • 评测
  • 测评结果:WA
  • 用时:48ms
  • 内存:3620kb
  • [2024-11-14 11:48:40]
  • 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) {
  assert(S.size() == r - l + 1);
  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;
  }
  if(L.size() != m - l + 1) exit(0);
  if(R.size() != r - m) exit(0);
  assert(L.size() == m - l + 1);
  assert(R.size() == r - m);
  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;
}

詳細信息

Test #1:

score: 100
Accepted
time: 1ms
memory: 3620kb

input:

5
0
2
2
2
2
2
0

output:

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

result:

ok Accepted

Test #2:

score: -100
Wrong Answer
time: 48ms
memory: 3584kb

input:

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

output:

0 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 472 47...

result:

wrong answer format  Unexpected end of file - int32 expected