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  1. #include <iostream>
  2. #include <string>
  3. using namespace std;
  4.  
  5. int main() {
  6.     string s;
  7.     cin >> s;
  8.     if (s.length() == 2){
  9.         if (s[1] == '0') {
  10.             cout << s[0];
  11.             return 0;
  12.         }
  13.     }
  14.     int t = s[1];
  15.     s[1] = s[s.length() - 2];
  16.     s[s.length() - 2] = t;
  17.     cout << s;
  18.     return 0;
  19. }
Success #stdin #stdout 0.01s 5324KB
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https://ideone.com/AaDXBN
language:
C++ (gcc 8.3)
created:
10 days ago
visibility:
public

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