Submission #755904

#	Time	Username	Problem	Language	Result	Execution time	Memory
755904		vjudge1	Password (RMI18_password)	C++17	50 / 100	1045 ms	320 KiB

password

#include <bits/stdc++.h>
 
        using namespace std;
 
        string st; int k;
        int query(string str);
 
        string guess(int n, int s) {
            string S(n, 'a');
            int freq[s]{0};
            for(int l = 0; l < s; l++) {
                for(int i = 0; i < n; i++)
                    S[i] = char('a' + l);
                freq[l] = query(S);
            }
            S = "";
            for(int l = 0; l < s; l++) {
                for(int i = 0, last = 0; i < freq[l]; i++) {
                    for(;; last++) {
                        string str = "";
                        for(int e = 0; e < last; e++) str.push_back(S[e]);
                        str.push_back(char('a' + l));
                        for(int e = last; e < S.size(); e++)
                            str.push_back(S[e]);
                        if(query(str) == str.size()) {
                            S = str; last++; break;
                        }
                    }
                }
            }
            return S;
        }

Compilation message (stderr)

password.cpp: In function 'std::string guess(int, int)':
password.cpp:23:45: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 |                         for(int e = last; e < S.size(); e++)
      |                                           ~~^~~~~~~~~~
password.cpp:25:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |                         if(query(str) == str.size()) {
      |                            ~~~~~~~~~~~^~~~~~~~~~~~~

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