Submission #755952

#	Time	Username	Problem	Language	Result	Execution time	Memory
755952		MohamedFaresNebili	Password (RMI18_password)	C++14	80 / 100	1371 ms	444 KiB

password

#include <bits/stdc++.h>

        using namespace std;

        int query(string str);

        string guess(int n, int s) {
            string S(n, 'a');
            int freq[s]{0};
            vector<pair<int, int>> v;
            for(int l = 0; l < s; l++) {
                for(int i = 0; i < n; i++)
                    S[i] = char('a' + l);
                freq[l] = query(S);
                v.push_back({freq[l], l});
            }
            sort(v.begin(), v.end());
            S = "";
            for(int l = 0; l < v[0].first; l++)
                S += char('a' + v[0].second);
            for(int _ = 1; _ < s; _++) {
                int l = v[_].second;
                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:28:45: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |                         for(int e = last; e < S.size(); e++)
      |                                           ~~^~~~~~~~~~
password.cpp:30:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |                         if(query(str) == str.size()) {
      |                            ~~~~~~~~~~~^~~~~~~~~~~~~

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