fork(4) download
copy 
  1. #include <iostream>
  2. using namespace std;
  3.  
  4. bool compare(string a, int ia, string b, int ib)
  5. {
  6. 	if (ia == a.length()) return true;
  7. 	if (ib == b.length()) return false;
  8. 	if (a[ia] == b[ib]) return compare(a, ia+1, b, ib+1);
  9. 	return a[ia] > b[ib];
  10. }
  11.  
  12. int main()
  13. {
  14.     string a = "12";
  15.     string b = "21";
  16.     int ia = 0;
  17.     int ib = 0;
  18.     while (ia < a.length() || ib < b.length())
  19.     {
  20.         if (compare(a, ia, b, ib))
  21.             cout << b[ib++];
  22.         else
  23.             cout << a[ia++];
  24.     }
  25. 	return 0;
  26. }
Success #stdin #stdout 0s 15240KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
1212
https://ideone.com/PPtYY0
language:
C++ (gcc 8.3)
created:
5 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!