Submission #918610

#	Time	Username	Problem	Language	Result	Execution time	Memory
918610		AtabayRajabli	Password (RMI18_password)	C++17	0 / 100	1 ms	440 KiB

password

#include <bits/stdc++.h>
using namespace std;

int query(string s);

string guess(int n, int s)
{
  int comb[26][26] = {0};
  int freq[26] = {0};

  for(int i = 0; i < 26; i++)
  {
    int l = 0, r = n;
    while(l <= r)
    {
      int mid = (l + r) / 2;
      string x = "";
      for(int j = 0; j < mid; j++)x += (char(i + 'a'));

      int sz = x.size();
      if(query(x) == sz)l = mid + 1;
      else r = mid - 1;
    }
    freq[i] = l - 1;
  }

  string ans = "";
  for(int i = 0; i < s; i++)
  {
    for(int j = 0; j < s; j++)
    {
      string x = "";
      x.push_back(char(i +'a'));
      int cnt = freq[j];
      while(cnt--)x.push_back(char(j + 'a'));

      comb[i][j] = x.size();
    }
  }

  for(int ind = 0; ind < n; ind++)
  {
    for(int i = 0; i < 26; i++)
    {
      bool check = 1;
      for(int j = 0; j < 26; j++)
      {
        if(comb[i][j] != freq[j] + 1)
        {
          check = 0;
          break;
        }
      }
      if(check)
      {
        ans += char(i + 'a');
        freq[i]--;
        break;
      }
    }
  }

    return ans;
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 30
• Subtask 5: 0 / 20