fork download
copy 
  1. #include <iostream>
  2. #include <sstream>
  3. #include <stdexcept>
  4. using namespace std;
  5.  
  6. int intFromString(const string &s) {
  7. 	stringstream stream(s);
  8.  	int result;
  9. 	if (stream >> result)
  10. 		return result;
  11. 	throw std::invalid_argument(string("Can't convert string: \"") + s + "\" to int");
  12. }
  13.  
  14. int reversedInt(const string &s) {
  15.     return intFromString(string(s.rbegin(), s.rend()));
  16. }
  17.  
  18. int main() {
  19. 	string s;
  20.  
  21. 	while(cin >> s) {
  22. 		try {
  23. 			cout << "Normal=" << intFromString(s)  << "   Reversed=" << reversedInt(s) << endl;
  24. 		} catch (const invalid_argument &e) {
  25. 			cout << e.what() << endl;
  26. 		}
  27. 	}
  28. 	return 0;
  29. }
Success #stdin #stdout 0s 3236KB
comments (?)
stdin
copy 
001234
432200
234234dr234234
vsd23423
2342fs
stdout
copy 
Normal=1234   Reversed=432100
Normal=432200   Reversed=2234
Normal=234234   Reversed=432432
Can't convert string: "vsd23423" to int
Can't convert string: "sf2432" to int
https://ideone.com/4DSZWH
language:
C++ (gcc 8.3)
created:
9 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!