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Taraxacum

Number Reverse

Oct 15th, 2019
203
0
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C++ 0.57 KB | None | 0 0
  1. #include <iostream>
  2.  
  3. using namespace std;
  4.  
  5. int main(int argc, char const *argv[])
  6. {
  7.     int number;
  8.  
  9.     cin >> number;
  10.     cout << "Reverse " << number << endl;
  11.  
  12.     int reversed = 0;
  13.     while (number > 0)
  14.     {
  15.         int new_value = (reversed * 10) + (number % 10);
  16.         if (new_value < reversed)
  17.         {  
  18.             cerr << "The number was too large" << endl;
  19.             return -1;
  20.         }
  21.         else
  22.         {
  23.             number /= 10;
  24.             reversed = new_value;
  25.         }
  26.     }
  27.  
  28.     cout << reversed << endl;
  29.  
  30.     return 0;
  31. }
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