Submission #756928

#	Time	Username	Problem	Language	Result	Execution time	Memory
756928		ElyesChaabouni	Password (RMI18_password)	C++14	10 / 100	247 ms	444 KiB

password

#include <bits/stdc++.h>
 
using namespace std;
 
int query(string str);
string str, endChars, build, tmp, nEnd;
string guess(int n, int s) {
  endChars="";
 
  vector<int> freq(s);
  for (int i = 0; i < s; i++) {
    str="";
    for (int it = 0; it < n; it++) {
      str += (char)(i + 'a');
    }
    freq[i] = query(str);
  }
 
  for (int pos = n - 1; pos >= 0; pos--) {
    for (int i = 0; i < s; i++) {
      if (freq[i] > 0) {
        build="";
        for (int it = 0; it < freq[i]; it++) {
          build += (char)(i + 'a');
        }
        bool work = true;
 
        if ((int) build.size() + 1 + (int) endChars.size() <= n) {
          for (int j = 0; j < s; j++) {
            tmp="";
            tmp += build;
            tmp += (char)(j + 'a');
            tmp += endChars;
 
            if (query(tmp) == (int) tmp.length()) {
              work = false;
              break;
            }
          }
        }
 
        if (work) {
          freq[i] -= 1;
          nEnd="";
          nEnd += (char)(i + 'a');
          nEnd += endChars;
          endChars=nEnd;
          break;
        }
      }
    }
  }
  return endChars;
}

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