Language: C++

#include <bits/stdc++.h>
#include <string>
using namespace std;

int main() {
  std::string S();
   std::string  T();
   std::string  hikaku();
   std::string  hikaku2();
  
  cin>>S>>T;
  bool onazi=false;
  for(int i=0 ;i<S.size();i++){
    if(onazi) break;
    hikaku[i]=S[i];
    
    for(int j=0;j<i;j++){
      if(hikaku[j]==hikaku[i]){
        if(T[j]!=T[i]){ onazi=true;
                      break;}
      }
    }
             
     
}
  
  
   bool onazi2=false;
  for(int j=0 ;j<T.size();j++){
    if(onazi2) break;
    hikaku2[j]=T[j];
    
    for(int i=0;i<j;i++){
      if(hikaku2[i]==hikaku2[j]){
        if(S[i]!=S[j]){ onazi2=true;
                      break;}
  
      }
    }
  }
  
  
  
      if(onazi || onazi2){cout<<"No"<<endl;}
 
    else cout<<"Yes"<<endl;
      
}


Compiler output:
a.cc: In function 'int main()':
a.cc:6:16: warning: empty parentheses were disambiguated as a function declaration [-Wvexing-parse]
    6 |   std::string S();
      |                ^~
a.cc:6:16: note: remove parentheses to default-initialize a variable
    6 |   std::string S();
      |                ^~
      |                --
a.cc:7:18: warning: empty parentheses were disambiguated as a function declaration [-Wvexing-parse]
    7 |    std::string  T();
      |                  ^~
a.cc:7:18: note: remove parentheses to default-initialize a variable
    7 |    std::string  T();
      |                  ^~
      |                  --
a.cc:8:23: warning: empty parentheses were disambiguated as a function declaration [-Wvexing-parse]
    8 |    std::string  hikaku();
      |                       ^~
a.cc:8:23: note: remove parentheses to default-initialize a variable
    8 |    std::string  hikaku();
      |                       ^~
      |                       --
a.cc:9:24: warning: empty parentheses were disambiguated as a function declaration [-Wvexing-parse]
    9 |    std::string  hikaku2();
      |                        ^~
a.cc:9:24: note: remove parentheses to default-initialize a variable
    9 |    std::string  hikaku2();
      |                        ^~
      |                        --
a.cc:11:6: error: no match for 'operator>>' (operand types are 'std::istream' {aka 'std::basic_istream<char>'} and 'std::string()' {aka 'std::__cxx11::basic_string<char>()'})
   11 |   cin>>S>>T;
      |   ~~~^~~
      |   |    |
      |   |    std::string() {aka std::__cxx11::basic_string<char>()}
      |   std::istream {aka std::basic_istream<char>}
In file included from /usr/include/c++/14/sstream:40,
                 from /usr/include/c++/14/complex:45,
                 from /usr/include/c++/14/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:127,
                 from a.cc:1:
/usr/include/c++/14/istream:170:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(bool&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  170 |       operator>>(bool& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:170:7: note:   conversion of argument 1 would be ill-formed:
a.cc:11:8: error: cannot bind non-const lvalue reference of type 'bool&' to a value of type 'std::string (*)()' {aka 'std::__cxx11::basic_string<char> (*)()'}
   11 |   cin>>S>>T;
      |        ^
/usr/include/c++/14/istream:174:7: note: candidate: 'std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(short int&) [with _CharT = char; _Traits = std::char_traits<char>]' (near match)
  174 |       operator>>(short& __n);
      |       ^~~~~~~~
/usr/include/c++/14/istream:174:7: note:   conversion of argument 1 would be ill-formed:
a.cc:11:8: error: invalid conversion from 'std::string (*)()' {aka 'std::__cxx11::basic_string<char> (*)()'} to 'short int' [-fpermissive]
   11 |   cin>>S>>T;
      |        ^
      |        |
      |        std::string (*)() {aka std::__cxx11::basic_string<char> (*)()}
a.cc:11:8: error: cannot bind rvalue '(short int)S' to 'short int&'
/usr/include/c++/14/istream:177:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(short unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  177 |       operator>>(unsigned short& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:177:7: note:   conversion of argument 1 would be ill-formed:
a.cc:11:8: error: invalid conversion from 'std::string (*)()' {aka 'std::__cxx11::basic_string<char> (*)()'} to 'short unsigned int' [-fpermissive]
   11 |   cin>>S>>T;
      |        ^
      |        |
      |        std::string (*)() {aka std::__cxx11::basic_string<char> (*)()}
a.cc:11:8: error: cannot bind rvalue '(short unsigned int)S' to 'short unsigned int&'
/usr/include/c++/14/istream:181:7: note: candidate: 'std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(int&) [with _CharT = char; _Traits = std::char_traits<char>]' (near match)
  181 |       operator>>(int& __n);
      |       ^~~~~~~~
/usr/include/c++/14/istream:181:7: note:   conversion of argument 1 would be ill-formed:
a.cc:11:8: error: invalid conversion from 'std::string (*)()' {aka 'std::__cxx11::basic_string<char> (*)()'} to 'int' [-fpermissive]
   11 |   cin>>S>>T;
      |        ^
      |        |
      |        std::string (*)() {aka std::__cxx11::basic_string<char> (*)()}
a.cc:11:8: error: cannot bind rvalue '(int)S' to 'int&'
/usr/include/c++/14/istream:184:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  184 |       operator>>(unsigned int& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:184:7: note:   conversion of argument 1 would be ill-formed:
a.cc:11:8: error: invalid conversion from 'std::string (*)()' {aka 'std::__cxx11::basic_string<char> (*)()'} to 'unsigned int' [-fpermissive]
   11 |   cin>>S>>T;
      |        ^
      |        |
      |        std::string (*)() {aka std::__cxx11::basic_string<char> (*)()}
a.cc:11:8: error: cannot bind rvalue '(unsigned int)S' to 'unsigned int&'
/usr/include/c++/14/istream:188:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  188 |       operator>>(long& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:188:7: note:   conversion of argument 1 would be ill-formed:
a.cc:11:8: error: invalid conversion from 'std::string (*)()' {aka 'std::__cxx11::basic_string<char> (*)()'} to 'long int' [-fpermissive]
   11 |   cin>>S>>T;
      |        ^
      |        |
      |        std::string (*)() {aka std::__cxx11::basic_string<char> (*)()}
a.cc:11:8: error: cannot bind rvalue '(long int)S' to 'long int&'
/usr/include/c++/14/istream:192:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  192 |       operator>>(unsigned long& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:192:7: note:   conversion of argument 1 would be ill-formed:
a.cc:11:8: error: invalid conversion from 'std::string (*)()' {aka 'std::__cxx11::basic_string<char> (*)()'} to 'long unsigned int' [-fpermissive]
   11 |   cin>>S>>T;
      |        ^
      |        |
      |        std::string (*)() {aka std::__cxx11::basic_string<char> (*)()}
a.cc:11:8: error: cannot bind rvalue '(long unsigned int)S' to 'long unsigned int&'
/usr/include/c++/14/istream:199:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long long int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  199 |       operator>>(long long& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:199:7: note:   conversion of argument 1 would be ill-formed:
a.cc:11:8: error: invalid conversion from 'std::string (*)()' {aka 'std::__cxx11::basic_string<char> (*)()'} to 'long long int' [-fpermissive]
   11 |   cin>>S>>T;
      |        ^
      |        |
      |        std::string (*)() {aka std::__cxx11::basic_string<char> (*)()}
a.cc:11:8: error: cannot bind rvalue '(long long int)S' to 'long long int&'
/usr/include/c++/14/istream:203:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long long unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  203 |       operator>>(unsigned long long& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:203:7: note:   conversion of argument 1 would be ill-formed:
a.cc:11:8: error: invalid conversion from 'std::string (*)()' {aka 'std::__cxx11::basic_string<char> (*)()'} to 'long long unsigned int' [-fpermissive]
   11 |   cin>>S>>T;
      |        ^
      |        |
      |        std::string (*)() {aka std::__cxx11::basic_string<char> (*)()}
a.cc:11:8: error: cannot bind rvalue '(long long unsigned int)S' to 'long long unsigned int&'
/usr/include/c++/14/istream:328:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(void*&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  328 |       operator>>(void*& __p)
      |       ^~~~~~~~
/usr/include/c++/14/istream:328:7: note:   conversion of argument 1 would be ill-formed:
a.cc:11:8: error: invalid conversion from 'std::string (*)()' {aka 'std::__cxx11::basic_string<char> (*)()'} to 'void*' [-fpermissive]
   11 |   cin>>S>>T;
      |        ^
      |        |
      |        std::string (*)() {aka std::__cxx11::basic_string<char> (*)()}
a.cc:11:8: error: cannot bind rvalue '(void*)S' to 'void*&'
/usr/include/c++/14/istream:122:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(__istream_type& (*)(__istream_type&)) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  122 |       operator>>(__istream_type& (*__pf)(__istream_type&))
      |       ^~~~~~~~
/usr/include/c++/14/istream:122:7: note:   conversion of argument 1 would be ill-formed:
a.cc:11:8: error: invalid conversion from 'std::string (*)()' {aka 'std::__cxx11::basic_string<char> (*)()'} to 'std::basic_istream<char>::__istream_type& (*)(std::basic_istream<char>::__istream_type&)' {aka 'std::basic_istream<char>& (*)(std::basic_istream<char>&)