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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. const int TEN = 10;
  5.  
  6. int main() {
  7. 	int n;
  8. 	cin >> n;
  9. 	int nCopy = n, fDigit = 0, lDigit = 0;
  10. 	while (nCopy != 0) {
  11. 		nCopy /= TEN;
  12. 		if (nCopy == n / TEN) {
  13. 			fDigit = nCopy % TEN;
  14. 		} else if (nCopy > 10) {
  15. 			lDigit = nCopy % TEN;
  16. 		}
  17. 	}
  18. 	nCopy = n;
  19. 	int swap = 0;
  20. 	while (nCopy != 0) {
  21. 		swap *= TEN;
  22. 		if (nCopy < 10) {
  23. 			swap += fDigit;
  24. 		} else if (nCopy > 10) {
  25. 			swap += lDigit;
  26. 		} else {
  27. 			swap += nCopy % TEN;
  28. 		}
  29. 		nCopy /= TEN;
  30. 	}
  31. 	cout << swap;
  32. 	return 0;
  33. }
Success #stdin #stdout 0.01s 5284KB
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https://ideone.com/Dfp2ZK
language:
C++14 (gcc 8.3)
created:
5 days ago
visibility:
public

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