// lab1.c
// Solution to Lab 1
// COSC 251
// Alan Jamieson
// Spring 2008

#include <stdio.h>
#include <stdlib.h>

void add3Integers(){
  int *a, *b, *c;
  a = new int;
  b = new int;
  c = new int;
  printf("Enter the three integers, one at a time: ");
  scanf("%i", a);
  scanf("%i", b);
  scanf("%i", c);
  printf("The result: %i\n", *a + *b + *c);

}

void factorial(int i, int &result){
  if (i == 0)
    result = 1;
  if (i == 1)
    result *= 1;
  else{
    result = result * i;
    factorial(i - 1, result);
  }    
}

int main(){

  int choice = 0;
  printf("Enter your choice (1. add3Ints, 2. factorial): ");
  scanf("%i", &choice);
  if (choice == 1)
    add3Integers();
  if (choice == 2){
    int result = 1;
    int i = 0;
    printf("Enter the index value you wish: ");
    scanf("%i", &i);
    factorial(i, result);
    printf("The result is: %i\n", result);
  }
  return 0;
}