lv10 · December 8, 2015 22:29
diff --git a/combinations.c b/combinations.c
 /*                                                             
 *                                                             
 * Recursive Combinations Fomula implementation in C                     
 *     c(n,k)=c(n-1,k)+c(n-1,k-1)                              
 *                                                             
 * */                                                          
                                                               
 long combine ( int n, int r )                                  
 {                                                              
    if ( (n==r) || (r==0) || (n==0) )                          
        return 1;                                              
    return ( combine ( (n-1), r ) + combine ( (n-1), (r-1) )); 
 }
	/*
	*
	* Recursive Combinations Fomula implementation in C
	* c(n,k)=c(n-1,k)+c(n-1,k-1)
	*
	* */

	long combine ( int n, int r )
	{
	if ( (n==r) \|\| (r==0) \|\| (n==0) )
	return 1;
	return ( combine ( (n-1), r ) + combine ( (n-1), (r-1) ));
	}