ex03_50.cpp

来自「这是C＋＋编程经典的书上实例的源代码。 （英文名是《C＋＋ how to pr」· C++ 代码 · 共 46 行

// ex03_50.cpp
#include <iostream>

using std::cout;
using std::cin;
using std::endl;

int mystery( int, int );
      
int main()
{
   int x, y;
   
   cout << "Enter two integers: ";
   cin >> x >> y;
   cout << "The result is " << mystery( x, y ) << endl;
   return 0;
}
   
// Parameter b must be a positive
// integer to prevent infinite recursion
int mystery( int a, int b )
{
   if ( b == 1 )
      return a;
   else
      return a + mystery( a, b - 1 );
}



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