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#include "MyMath.h" 
#include "MyAssert.h" 
#include "Ulti.h" 
#include  
#include  
#include  
/*Attention when n is big ,this algorithm will have no little effect*/ 
long combination(int n,int m)/*output the group num from select from n element*/ 
{ 
	/*Algorithm Reason 
	Cm,n=n!/(m!*(n-m)!) 
	*/ 
	assertF(n>=m&&n<17,"in combination n=0&&n<17,"in jieCheng n is<0 or n is too big!\n"); 
	if(n==1||n==0)return 1; 
	else return n*jieCheng(n-1); 
}