ej14.cpp - CB100 - Notas, resueltos y tps de la materia Algoritmos y Estructuras de Datos

guias/1/ej14.cpp (360B)

Line numbers

   1 #include <iostream>
   2 
   3 int main (void) {
   4     int fact;
   5     unsigned long res;
   6 
   7     std::cin >> fact;
   8 
   9     if(fact < 0) {
  10         std::cerr << "Math ERROR" << std::endl;
  11         return 1;
  12     }
  13 
  14     res = 1;
  15     for (size_t i = 1; i <= (long unsigned int)fact; i++) {
  16         res *= i;
  17     }
  18 
  19     std::cout << fact << "! = " << res << std::endl;
  20 
  21     return 0;
  22 }