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Oct 21st, 2014
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C++ 0.40 KB | None | 0 0
  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main(){
  5.    
  6.     char a,b;
  7.    
  8.     cout << "\nIntroduza duas letras: ";
  9.     cin >> a >> b;
  10.    
  11.     if(( a < 'a' || a > 'z' ) && ( b < 'a' || b > 'z')) cout    << "\nErro na introdução dos dados: só são permitidas letras de a-z."
  12.                                                                 << "Este programa vai terminar. Adeus!.";
  13.     else
  14.         if(a > b)   cout << b << a;
  15.         else    cout << a << b;
  16.    
  17.     return 0;
  18. }
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