Submission #645906

#	Time	Username	Problem	Language	Result	Execution time	Memory
645906		Denkata	Password (RMI18_password)	C++14	Compilation error	0 ms	0 KiB

password

#include<bits/stdc++.h>
//#include "grader.cpp"
using namespace std;
int i,j,p,d,m,k,sz;
//int query(string q);
string ans;
pair <int,char> cnt[30];
string guess(int n,int s)
{
    sz=0;
    ///pisheshe i<='z'
    for(char c='a';c<='z';c++)
    {
        if(c-'a'+1>s)break;
        string f="";
        for(i=1;i<=n;i++)
            f.push_back(c);
        sz++;
        cnt[sz]={query(f),c};
    }
    sort(cnt+1,cnt+sz+1);
    //for(;;);
    for(i=1;i<=cnt[sz].first;i++)
        ans.push_back(cnt[sz].second);
    for(i=sz-1;i>=1;i--)
    {
        //cout<<ans<<" ans in the beginning"<<endl;
        if(cnt[i].first==0)break;
        int tek=ans.size();
        string newans="";
        string l="",r=ans;
        // cout<<l<<" nachalni "<<r<<endl;
        j=0;
        int still=cnt[i].first;
        while(j<tek)
        {
            l.push_back(ans[j]);
            r.erase(0,1);
            string f=l;
            for(int g=1;g<=still;g++)
                f.push_back(cnt[i].second);
            f=f+r;
           // cout<<f<<" for a query"<<endl;
            p=query(f);
            k=p-l.size();
            if(k<still)
            {
                for(int g=1;g<=still-k;g++)
                    newans.push_back(cnt[i].second);
                still=k;///stil-(stil-k)
            }
            newans.push_back(ans[j]);
            j++;
        }
        for(int g=1;g<=still;g++)
            newans.push_back(cnt[i].second);
        ans=newans;
    }
    return ans;
}

Compilation message (stderr)

password.cpp: In function 'std::string guess(int, int)':
password.cpp:19:18: error: 'query' was not declared in this scope
   19 |         cnt[sz]={query(f),c};
      |                  ^~~~~
password.cpp:19:28: error: no match for 'operator=' (operand types are 'std::pair<int, char>' and '<brace-enclosed initializer list>')
   19 |         cnt[sz]={query(f),c};
      |                            ^
In file included from /usr/include/c++/10/bits/stl_algobase.h:64,
                 from /usr/include/c++/10/bits/char_traits.h:39,
                 from /usr/include/c++/10/ios:40,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from password.cpp:1:
/usr/include/c++/10/bits/stl_pair.h:390:7: note: candidate: 'std::pair<_T1, _T2>& std::pair<_T1, _T2>::operator=(typename std::conditional<std::__and_<std::is_copy_assignable<_T1>, std::is_copy_assignable<_T2> >::value, const std::pair<_T1, _T2>&, const std::__nonesuch&>::type) [with _T1 = int; _T2 = char; typename std::conditional<std::__and_<std::is_copy_assignable<_T1>, std::is_copy_assignable<_T2> >::value, const std::pair<_T1, _T2>&, const std::__nonesuch&>::type = const std::pair<int, char>&]'
  390 |       operator=(typename conditional<
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_pair.h:393:41: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::conditional<true, const std::pair<int, char>&, const std::__nonesuch&>::type' {aka 'const std::pair<int, char>&'}
  390 |       operator=(typename conditional<
      |                 ~~~~~~~~~~~~~~~~~~~~~    
  391 |   __and_<is_copy_assignable<_T1>,
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~        
  392 |          is_copy_assignable<_T2>>::value,
      |          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  393 |   const pair&, const __nonesuch&>::type __p)
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_pair.h:401:7: note: candidate: 'std::pair<_T1, _T2>& std::pair<_T1, _T2>::operator=(typename std::conditional<std::__and_<std::is_move_assignable<_Tp>, std::is_move_assignable<_T2> >::value, std::pair<_T1, _T2>&&, std::__nonesuch&&>::type) [with _T1 = int; _T2 = char; typename std::conditional<std::__and_<std::is_move_assignable<_Tp>, std::is_move_assignable<_T2> >::value, std::pair<_T1, _T2>&&, std::__nonesuch&&>::type = std::pair<int, char>&&]'
  401 |       operator=(typename conditional<
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_pair.h:404:31: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::conditional<true, std::pair<int, char>&&, std::__nonesuch&&>::type' {aka 'std::pair<int, char>&&'}
  401 |       operator=(typename conditional<
      |                 ~~~~~~~~~~~~~~~~~~~~~
  402 |   __and_<is_move_assignable<_T1>,
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  403 |          is_move_assignable<_T2>>::value,
      |          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  404 |   pair&&, __nonesuch&&>::type __p)
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_pair.h:418:2: note: candidate: 'template<class _U1, class _U2> typename std::enable_if<std::__and_<std::is_assignable<_T1&, const _U1&>, std::is_assignable<_T2&, const _U2&> >::value, std::pair<_T1, _T2>&>::type std::pair<_T1, _T2>::operator=(const std::pair<_U1, _U2>&) [with _U1 = _U1; _U2 = _U2; _T1 = int; _T2 = char]'
  418 |  operator=(const pair<_U1, _U2>& __p)
      |  ^~~~~~~~
/usr/include/c++/10/bits/stl_pair.h:418:2: note:   template argument deduction/substitution failed:
password.cpp:19:28: note:   couldn't deduce template parameter '_U1'
   19 |         cnt[sz]={query(f),c};
      |                            ^
In file included from /usr/include/c++/10/bits/stl_algobase.h:64,
                 from /usr/include/c++/10/bits/char_traits.h:39,
                 from /usr/include/c++/10/ios:40,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from password.cpp:1:
/usr/include/c++/10/bits/stl_pair.h:430:2: note: candidate: 'template<class _U1, class _U2> typename std::enable_if<std::__and_<std::is_assignable<_T1&, _U1&&>, std::is_assignable<_T2&, _U2&&> >::value, std::pair<_T1, _T2>&>::type std::pair<_T1, _T2>::operator=(std::pair<_U1, _U2>&&) [with _U1 = _U1; _U2 = _U2; _T1 = int; _T2 = char]'
  430 |  operator=(pair<_U1, _U2>&& __p)
      |  ^~~~~~~~
/usr/include/c++/10/bits/stl_pair.h:430:2: note:   template argument deduction/substitution failed:
password.cpp:19:28: note:   couldn't deduce template parameter '_U1'
   19 |         cnt[sz]={query(f),c};
      |                            ^
password.cpp:44:15: error: 'query' was not declared in this scope
   44 |             p=query(f);
      |               ^~~~~