oj.uz

Submission #212567

# Submission time Handle Problem Language Result Execution time Memory
212567 2020-03-23T14:47:44 Z WLZ Chameleon's Love (JOI20_chameleon) C++14
44 / 100
 47 ms 384 KB 
#include "chameleon.h"
#include <bits/stdc++.h>
using namespace std;
 
namespace {
  vector< vector<int> > g;
  vector<int> found, st;
 
  void find(const vector<int>& v, int cur) {
    vector<int> tmp = v;
    tmp.push_back(cur);
    if (v.empty()) {
      return;
    }
    if (Query(tmp) == (int) tmp.size()) {
      return;
    }
    if ((int) v.size() == 1) {
      found.push_back(v[0]);
      return;
    }
    vector< vector<int> > split(4);
    for (int i = 0; i < (int) v.size(); i++) {
      split[i % 4].push_back(v[i]);
    }
    for (int i = 0; i < 4; i++) {
      find(split[i], cur);
    }
  } 
}
 
void Solve(int N) {
  g.resize(2 * N + 1);
  st.resize(2 * N + 1);
  st[1] = 0;
  for (int i = 2; i <= 2 * N; i++) {
    found.clear();
    vector<int> a, b;
    for (int j = 1; j < i; j++) {
      if (st[j] == 0) {
        a.push_back(j);
      } else {
        b.push_back(j);
      }
    }
    find(a, i);
    find(b, i);
    if (found.empty()) {
      st[i] = 0;
    } else {
      for (auto& x : found) {
        st[i] = !st[x];
        g[i].push_back(x);
        g[x].push_back(i);
      }
    }
  }
  vector<int> used(2 * N + 1, 0), in(2 * N + 1, -1), out(2 * N + 1, -1);
  for (int i = 1; i <= 2 * N; i++) {
    if ((int) g[i].size() == 1) {
      continue;
    }
    if (Query({i, g[i][0], g[i][1]}) == 1) {
      out[i] = g[i][2];
      in[g[i][2]] = i;
    } else {
      if (Query({i, g[i][0], g[i][2]}) == 1) {
        out[i] = g[i][1];
        in[g[i][1]] = i;
      } else {
        out[i] = g[i][0];
        in[g[i][0]] = i;
      }
    }
  }
  for (int i = 1; i <= 2 * N; i++) {
    if (used[i]) {
      continue;
    }
    for (auto& x : g[i]) {
      if (x != in[i] && x != out[i]) {
        Answer(i, x);
        used[i] = used[x] = 1;
      }
    }
  }
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 34 ms 384 KB Output is correct
4 Correct 39 ms 384 KB Output is correct
5 Correct 34 ms 384 KB Output is correct
6 Correct 34 ms 384 KB Output is correct
7 Correct 34 ms 384 KB Output is correct
8 Correct 34 ms 384 KB Output is correct
9 Correct 34 ms 384 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 4 ms 384 KB Output is correct
8 Correct 4 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 4 ms 384 KB Output is correct
8 Correct 4 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 6 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 6 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 6 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 6 ms 384 KB Output is correct
18 Correct 6 ms 384 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Incorrect 47 ms 384 KB Wrong Answer [3]
4 Halted 0 ms 0 KB -

Subtask #5
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 34 ms 384 KB Output is correct
4 Correct 39 ms 384 KB Output is correct
5 Correct 34 ms 384 KB Output is correct
6 Correct 34 ms 384 KB Output is correct
7 Correct 34 ms 384 KB Output is correct
8 Correct 34 ms 384 KB Output is correct
9 Correct 34 ms 384 KB Output is correct
10 Correct 4 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 4 ms 384 KB Output is correct
17 Correct 4 ms 384 KB Output is correct
18 Correct 4 ms 384 KB Output is correct
19 Correct 6 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 6 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 6 ms 384 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 6 ms 384 KB Output is correct
27 Correct 6 ms 384 KB Output is correct
28 Correct 4 ms 384 KB Output is correct
29 Correct 4 ms 384 KB Output is correct
30 Incorrect 47 ms 384 KB Wrong Answer [3]
31 Halted 0 ms 0 KB -