fork download
copy 
  1. #include <limits>
  2. #include <cctype>
  3. #include <iostream>
  4. #include <iomanip>
  5.  
  6. int main()
  7. {
  8.     double const    kms_included_per_day    = 60.0;
  9.     unsigned const  price_per_additional_km =   40;
  10.     unsigned const  price_per_day           = 6000;
  11.  
  12.     int ch = 0;
  13.  
  14.     do {
  15.         unsigned days = 0;
  16.         double km = 0;
  17.  
  18.         while(  std::cout << "Tage:\t",
  19.                 !( std::cin >> days ) )
  20.         {
  21.             std::cerr << "\nFehlerhafte Eingabe. Bitte wiederholen!\n\n";
  22.             std::cin.ignore( std::numeric_limits< std::streamsize >::max(), '\n' );
  23.             std::cin.clear();
  24.         }
  25.  
  26.         while(  std::cout << "km:\t",
  27.                 !( std::cin >> km ) )
  28.         {
  29.             std::cerr << "\nFehlerhafte Eingabe. Bitte wiederholen!\n\n";
  30.             std::cin.ignore( std::numeric_limits< std::streamsize >::max(), '\n' );
  31.             std::cin.clear();
  32.         }
  33.  
  34.         double additional_kms = 0;
  35.  
  36.         if( km > days * kms_included_per_day ) {
  37.  
  38.             additional_kms = km - days * kms_included_per_day;
  39.         }
  40.  
  41.         unsigned price = days * price_per_day + additional_kms * price_per_additional_km;
  42.  
  43.         std::cout << "Preis:\t" << std::setw( 5 ) << std::setprecision( 2 ) << std::fixed << price / 100. << "\n\n";
  44.  
  45.         std::cin.ignore( std::numeric_limits< std::streamsize >::max(), '\n' );
  46.  
  47.         while(  std::cout << "Berechnung wiederholen? (j/n)\n",
  48.                 ( std::tolower( ch = std::cin.get() ) != 'j' && std::tolower( ch ) != 'n' ) )
  49.         {
  50.             std::cerr << "\nFehlerhafte Eingabe. Bitte wiederholen!\n\n";
  51.             std::cin.ignore( std::numeric_limits< std::streamsize >::max(), '\n' );
  52.             std::cin.clear();
  53.         }
  54.  
  55.         std::cout.put( '\n' );
  56.  
  57.     } while( ch != 'n' && ch != 'N' );
  58. }
Runtime error #stdin #stdout 0.01s 3032KB
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Discover > Sphere Engine API

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