oj.uz

Submission #962768

# Submission time Handle Problem Language Result Execution time Memory
962768 2024-04-14T08:01:03 Z Soumya1 Chameleon's Love (JOI20_chameleon) C++17
100 / 100
 49 ms 836 KB 
#include "chameleon.h"
#include <bits/stdc++.h>
using namespace std;
const int mxN = 1005;
vector<int> ad[mxN];
vector<int> all[2];
int col[mxN];
int query(vector<int> v, int l, int r, int x) {
  vector<int> a;
  for (int i = l; i <= r; i++) a.push_back(v[i]);
  a.push_back(x);
  return Query(a);
}
void dfs(int u) {
  all[col[u]].push_back(u);
  for (int v : ad[u]) {
    if (col[v] == -1) {
      col[v] = col[u] ^ 1;
      dfs(v);
    }
  }
}
void search(vector<int> v, int x) {
  if (v.empty()) return;
  int L = 0, R = v.size() - 1;
  while (L <= R) {
    if (query(v, L, R, x) == R - L + 2) break;
    int lo = L, hi = R;
    while (lo < hi) {
      int mid = (lo + hi) >> 1;
      if (query(v, L, mid, x) < mid - L + 2) hi = mid;
      else lo = mid + 1;
    }
    ad[x].push_back(v[hi]);
    ad[v[hi]].push_back(x);
    L = hi + 1;
  }
}
void Solve(int N) {
  for (int i = 1; i <= 2 * N; i++) {
    search(all[0], i);
    search(all[1], i);
    all[0].clear();
    all[1].clear();
    for (int j = 1; j <= i; j++) col[j] = -1;
    for (int j = 1; j <= i; j++) {
      if (col[j] == -1) col[j] = 0, dfs(j);
    }
  }
  vector<int> ans(2 * N + 1), out(2 * N + 1);
  for (int i = 1; i <= 2 * N; i++) {
    if (ad[i].size() == 1) {
      ans[i] = ad[i][0];
      continue;
    }
    int ii = -1, jj = -1;
    for (int j : ad[i]) {
      for (int k : ad[i]) {
        if (j == k || ii != -1) continue;
        if (Query({i, j, k}) == 1) {
          ii = j, jj = k;
        }
      }
    }
    for (int j : ad[i]) {
      if (j != ii && j != jj) out[i] = j;
    }
  }
  for (int i = 1; i <= 2 * N; i++) {
    if (ad[i].size() == 1) continue;
    for (int j : ad[i]) {
      if (j != out[i] && out[j] != i) ans[i] = j;
    }
  }
  for (int i = 1; i <= 2 * N; i++) {
    if (i < ans[i]) Answer(i, ans[i]);
  }
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 22 ms 344 KB Output is correct
4 Correct 22 ms 564 KB Output is correct
5 Correct 19 ms 344 KB Output is correct
6 Correct 21 ms 588 KB Output is correct
7 Correct 20 ms 564 KB Output is correct
8 Correct 19 ms 576 KB Output is correct
9 Correct 21 ms 344 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 344 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 1 ms 480 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 356 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 43 ms 568 KB Output is correct
4 Correct 42 ms 564 KB Output is correct
5 Correct 43 ms 608 KB Output is correct
6 Correct 42 ms 592 KB Output is correct
7 Correct 41 ms 592 KB Output is correct
8 Correct 42 ms 592 KB Output is correct
9 Correct 49 ms 600 KB Output is correct

Subtask #5
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 22 ms 344 KB Output is correct
4 Correct 22 ms 564 KB Output is correct
5 Correct 19 ms 344 KB Output is correct
6 Correct 21 ms 588 KB Output is correct
7 Correct 20 ms 564 KB Output is correct
8 Correct 19 ms 576 KB Output is correct
9 Correct 21 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 1 ms 344 KB Output is correct
26 Correct 1 ms 344 KB Output is correct
27 Correct 1 ms 480 KB Output is correct
28 Correct 1 ms 356 KB Output is correct
29 Correct 0 ms 344 KB Output is correct
30 Correct 43 ms 568 KB Output is correct
31 Correct 42 ms 564 KB Output is correct
32 Correct 43 ms 608 KB Output is correct
33 Correct 42 ms 592 KB Output is correct
34 Correct 41 ms 592 KB Output is correct
35 Correct 42 ms 592 KB Output is correct
36 Correct 49 ms 600 KB Output is correct
37 Correct 44 ms 580 KB Output is correct
38 Correct 22 ms 344 KB Output is correct
39 Correct 43 ms 600 KB Output is correct
40 Correct 43 ms 588 KB Output is correct
41 Correct 44 ms 592 KB Output is correct
42 Correct 19 ms 344 KB Output is correct
43 Correct 42 ms 592 KB Output is correct
44 Correct 46 ms 592 KB Output is correct
45 Correct 49 ms 836 KB Output is correct