Submission #1248012

#	Time	Username	Problem	Language	Result	Execution time	Memory
1248012		julia_08	Unscrambling a Messy Bug (IOI16_messy)	C++20	100 / 100	1 ms	584 KiB

messy

#include <bits/stdc++.h>
#include "messy.h"

using namespace std;

vector<int> ans;

void add(int l, int r, string s){

  if(l == r) return;

  int m = (l + r + 1) / 2;

  for(int i=l; i<m; i++){
    s[i] = '1';
    add_element(s);
    s[i] = '0';
  }

  string s_left = s, s_right = s;

  for(int i=m; i<=r; i++) s_left[i] = '1';
  for(int i=l; i<m; i++) s_right[i] = '1';

  add(l, m - 1, s_left);
  add(m, r, s_right);

}

void check(int l, int r, string s, vector<int> v){

  if(l == r){
    ans[v[0]] = l;
    return;
  }

  vector<int> v_left, v_right;

  for(auto i : v){

    s[i] = '1';

    if(check_element(s)){
      v_left.push_back(i);
    } else v_right.push_back(i);

    s[i] = '0';

  }

  string s_left = s, s_right = s;

  for(auto i : v_right) s_left[i] = '1';
  for(auto i : v_left) s_right[i] = '1';

  int m = (l + r + 1) / 2;

  check(l, m - 1, s_left, v_left);
  check(m, r, s_right, v_right);

}

vector<int> restore_permutation(int n, int w, int r){

  string s;

  for(int i=0; i<n; i++) s.push_back('0');

  add(0, n - 1, s);

  compile_set();

  for(int i=0; i<n; i++) s[i] = '0';

  ans.resize(n);
  
  vector<int> v;

  for(int i=0; i<n; i++) v.push_back(i);

  check(0, n - 1, s, v);

  return ans;

}

Compilation message (stderr)

messy.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
messy_c.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~

• Subtask 1: 20 / 20
• Subtask 2: 18 / 18
• Subtask 3: 11 / 11
• Subtask 4: 21 / 21
• Subtask 5: 30 / 30