fact.cpp

来自「包含各种测试,查找和算法等代码,如冒泡算法,树的遍历,链表,队列,堆栈等」· C++ 代码 · 共 21 行

#include <iostream.h>
/*
long Fact(int n)
{
	if(n == 0) return 1;							
	return n * Fact(n-1);		
}
*/
long Fact(int n)
{
	int fac = 1;
	for(int i = 1; i <= n; i++)
		fac = fac * i;
	return fac;
}
void main(void)
{
	int n = 4, fn;
	fn = Fact(n);
	cout << "Fact(n) = " << Fact(n) << endl;
}