답안 #773126

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
773126	2023-07-04T15:33:54 Z	aykhn	Password (RMI18_password)	C++14	컴파일 오류	0 ms	0 KB

password

#include <bits/stdc++.h>

// author: aykhn

using namespace std;
using namespace __gnu_pbds;

typedef long long ll;

int query(string str);

string guess(int n, int s)
{
    string ans = "";
    int prev;

    string x = "a";
    for (int i = 0; i < s; i++)
    {
        ans = x + ans;
        int X = query(ans);
        prev = max(X, prev);
        if (!X) ans = ans.substr(1, (int)(ans.length()) - 1);

        for (int j = 1; j <= ans.length(); j++)
        {
            string asd = ans.substr(0, j);
            string assd = ans.substr(j, (int)ans.length() - j);
            ans = asd;
            asd += x;
            asd += assd;
            int y = query(ans);
            if (y <= prev)
            {
                asd = ans.substr(0, j);
                assd = ans.substr(j + 1, (int)ans.length() - j - 1);
                ans = asd + assd;
            }
        }

        x[0]++;
    }

    return ans;
}

Compilation message

password.cpp:6:17: error: '__gnu_pbds' is not a namespace-name
    6 | using namespace __gnu_pbds;
      |                 ^~~~~~~~~~
password.cpp: In function 'std::string guess(int, int)':
password.cpp:25:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |         for (int j = 1; j <= ans.length(); j++)
      |                         ~~^~~~~~~~~~~~~~~