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Submission #538649

# Submission time Handle Problem Language Result Execution time Memory
538649 2022-03-17T11:15:18 Z AdamGS Password (RMI18_password) C++17
0 / 100
 390 ms 208 KB 
#include<bits/stdc++.h>
using namespace std;
#define rep(a, b) for(int a = 0; a < (b); ++a)
int query(string p);
string guess(int n, int s) {
  string ans="";
  rep(i, n-s) {
    int p=0, k=s-1;
    while(p<k) {
      int sr=(p+k)/2;
      string p=ans;
      rep(i, sr+1) p+=char(i+'a');
      int a=query(p);
      if(a==n) return p;
      if(a>i) k=sr; else p=sr+1;
    }
    ans+=char(p+'a');
  }
  for(int i=max(n-s, 0); i<n; ++i) {
    int x=-1;
    rep(j, s) if(x==-1) {
      string p=ans+char(j+'a');
      int a=query(p);
      if(a==n) return p;
      if(a>i) x=j;
    }
    ans+=char(x+'a');
  }
  return ans;
}

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 208 KB Execution killed with signal 13
2 Halted 0 ms 0 KB -

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 390 ms 208 KB Could not guess the password with 50000 queries.
2 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 227 ms 208 KB Could not guess the password with 50000 queries.
2 Halted 0 ms 0 KB -

Subtask #4
0 / 30.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 208 KB Execution killed with signal 13
2 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 208 KB Execution killed with signal 13
2 Halted 0 ms 0 KB -