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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3.  
  4. char add(string s)
  5. {
  6. string s1="";
  7. for(int i=0;i<s.length();i++)
  8. 	{
  9. 		for(int j=0;j<s.length();j++)
  10. 		{
  11. 			s1=s1[j]+s[i];
  12. 		}
  13. 	}
  14. 	return s1;
  15. }
  16.  
  17.  
  18. int main()
  19. {
  20. string s,s1;
  21. int k;
  22. cin>>s>>k;
  23.  
  24. for(int i=0;i<k;i++)
  25. {
  26. 	s1=s1+s;
  27. }
  28. for(int i=0;i<5;i++)
  29. {
  30. 	s1=add(s1);
  31. }
  32.  
  33. cout<<s1<<endl;
  34. }
Compilation error #stdin compilation error #stdout 0s 15240KB
comments (?)
stdin
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Standard input is empty
compilation info 
prog.cpp: In function ‘char add(std::__cxx11::string)’:
prog.cpp:14:9: error: cannot convert ‘std::__cxx11::string {aka std::__cxx11::basic_string<char>}’ to ‘char’ in return
  return s1;
         ^~
stdout
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Standard output is empty
https://ideone.com/uGtHz5
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
public

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