Submission #475322

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
475322	2021-09-21T20:41:01 Z	ogibogi2004	Password (RMI18_password)	C++14	Compilation error	0 ms	0 KB

password

#include<bits/stdc++.h>
using namespace std;
int query(string s);
string s1,s2,tmp;
string solve(int l,int r)
{
    if(l==r)
    {
        string s="";
        for(int j=0;;j++)
        {
            s+=char('a'+l);
            if(query(s)!=s.size())
            {
                s.pop_back();
                return s;
            }
        }
    }
    int mid=(l+r)/2;
    s1=solve(l,mid);
    s2=solve(mid+1,r);
    tmp="";
    int j=0;
    for(int i=0;i<=s1.size();i++)
    {
        if(j<s2.size())
        {
            tmp=s1;
            tmp.insert(tmp.begin()+i,s2[j]);
            if(query(tmp)==tmp.size())
            {
                s1=tmp;
                j++;
            }
        }
    }
    while(j<s2.size())s1+=s2[j++];
    //if(j<s2.size())assert(false);
    if(s1.size()>n)assert(false);
    return s1;
}
string guess(int n,int s)
{
    return solve(0,s-1);
}

Compilation message

password.cpp: In function 'std::string solve(int, int)':
password.cpp:13:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |             if(query(s)!=s.size())
      |                ~~~~~~~~^~~~~~~~~~
password.cpp:25:18: 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 i=0;i<=s1.size();i++)
      |                 ~^~~~~~~~~~~
password.cpp:27:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |         if(j<s2.size())
      |            ~^~~~~~~~~~
password.cpp:31:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |             if(query(tmp)==tmp.size())
      |                ~~~~~~~~~~^~~~~~~~~~~~
password.cpp:38:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |     while(j<s2.size())s1+=s2[j++];
      |           ~^~~~~~~~~~
password.cpp:40:18: error: 'n' was not declared in this scope
   40 |     if(s1.size()>n)assert(false);
      |                  ^