oj.uz

Submission #1092826

# Submission time Handle Problem Language Result Execution time Memory
1092826 2024-09-25T08:16:42 Z Fran ICC (CEOI16_icc) C++17
100 / 100
 94 ms 652 KB 
#include "icc.h"
#include<bits/stdc++.h>
using namespace std;

constexpr int N = 101;

int rang[101];

vector<int> ver[101];

int qry(vector<int> a, vector<int> b) {
  return query(a.size(), b.size(), &a[0], &b[0]);
}

int find(int x) {
  return rang[x] == x ? x : rang[x] = find(rang[x]);
}

int find(vector<int> a, vector<int> b) {
  if(a.size() == 1) {
    return a[0];
  }

  int mid = a.size() / 2;
  auto lv = vector(a.begin(), a.begin() + mid), rv = vector(a.begin() + mid, a.end());
  return qry(lv, b) ? find(lv, b) : find(rv, b);
}

void run(int n) {
  iota(rang, rang+n+1, 0);
  for(int i = 1; i <= n; ++i) ver[i].push_back(i);
  for(int e = 0; e < n - 1; ++e) {
    vector<int> root;
    for(int i = 1; i <= n; ++i) {
      if(rang[i] == i) root.push_back(i);
    }
    int roots = root.size();
    int x = 0, k = -1;
    for(int i = 0; (1 << i) < roots; ++i) {
      vector<int> a, b;
      for(int j = 0; j < roots; ++j) {
        auto &v = (j >> i) & 1 ? a : b;
        v.insert(v.end(), ver[root[j]].begin(), ver[root[j]].end());
      }
      
      if(qry(a, b)) {
        x ^= 1 << i;
        k = i;
      }
    }
    int y = 0;
    for(int i = 0; (1 << i) < roots; ++i) {
      if(i == k) continue;
      vector<int> a, b;
      for(int j = 0; j < roots; ++j) {
        auto &v = j & (1 << i | 1 << k) ? a : b;
        v.insert(v.end(), ver[root[j]].begin(), ver[root[j]].end());
      }
      if(!qry(a, b)) y ^= 1 << i;
    }
    x ^= y;
    int u = find(ver[root[x]], ver[root[y]]);
    int v = find(ver[root[y]], ver[root[x]]);
    setRoad(u, v);
    for(auto& x : ver[rang[v]]) {
      rang[x] = rang[u];
      ver[rang[u]].push_back(x);
    }

  }
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 600 KB Ok! 117 queries used.
2 Correct 5 ms 600 KB Ok! 116 queries used.

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 30 ms 604 KB Ok! 650 queries used.
2 Correct 27 ms 636 KB Ok! 551 queries used.
3 Correct 26 ms 632 KB Ok! 591 queries used.

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 89 ms 604 KB Ok! 1573 queries used.
2 Correct 79 ms 604 KB Ok! 1372 queries used.
3 Correct 90 ms 640 KB Ok! 1613 queries used.
4 Correct 85 ms 644 KB Ok! 1497 queries used.

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 94 ms 640 KB Ok! 1564 queries used.
2 Correct 88 ms 648 KB Ok! 1543 queries used.
3 Correct 83 ms 652 KB Ok! 1488 queries used.
4 Correct 89 ms 600 KB Ok! 1608 queries used.

Subtask #5
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 91 ms 636 KB Ok! 1414 queries used.
2 Correct 85 ms 640 KB Ok! 1433 queries used.
3 Correct 83 ms 600 KB Ok! 1424 queries used.
4 Correct 81 ms 636 KB Ok! 1452 queries used.
5 Correct 92 ms 600 KB Ok! 1587 queries used.
6 Correct 90 ms 644 KB Ok! 1575 queries used.

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 84 ms 640 KB Ok! 1448 queries used.
2 Correct 80 ms 600 KB Ok! 1420 queries used.