oj.uz

Submission #1092840

# Submission time Handle Problem Language Result Execution time Memory
1092840 2024-09-25T08:37:55 Z Fran ICC (CEOI16_icc) C++17
100 / 100
 85 ms 656 KB 
#include "icc.h"
#include <bits/stdc++.h>

using namespace std;

constexpr int N = 101;

int rang[N];

vector<int> ver[N];

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

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[u]]) {
      rang[x] = rang[v];
      ver[rang[v]].push_back(x);
    }

  }
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 600 KB Ok! 117 queries used.
2 Correct 4 ms 616 KB Ok! 116 queries used.

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 32 ms 616 KB Ok! 650 queries used.
2 Correct 30 ms 616 KB Ok! 600 queries used.
3 Correct 25 ms 656 KB Ok! 656 queries used.

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 80 ms 616 KB Ok! 1607 queries used.
2 Correct 70 ms 604 KB Ok! 1395 queries used.
3 Correct 74 ms 600 KB Ok! 1613 queries used.
4 Correct 76 ms 600 KB Ok! 1606 queries used.

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 85 ms 600 KB Ok! 1601 queries used.
2 Correct 81 ms 604 KB Ok! 1599 queries used.
3 Correct 73 ms 604 KB Ok! 1613 queries used.
4 Correct 77 ms 640 KB Ok! 1606 queries used.

Subtask #5
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 79 ms 604 KB Ok! 1581 queries used.
2 Correct 75 ms 604 KB Ok! 1613 queries used.
3 Correct 83 ms 644 KB Ok! 1549 queries used.
4 Correct 78 ms 656 KB Ok! 1613 queries used.
5 Correct 75 ms 604 KB Ok! 1606 queries used.
6 Correct 74 ms 600 KB Ok! 1611 queries used.

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 74 ms 644 KB Ok! 1613 queries used.
2 Correct 83 ms 600 KB Ok! 1613 queries used.