11.cpp

实现阶乘算法,1000以内的数字都可以实现

#include <iostream.h>
int add(int x1,int x2,int x3,int x4){return x1+x2+x3+x4;}
void main()
{
	int num(0);
	for(int i=0;i<=3;i++)
		for(int j=0;j<=4;j++)
			for(int k=0;k<=5;k++)
				for(int l=0;l<=8;l++)
				    if(add(i,j,k,l)==17)
				{
					cout<<num+1<<":"<<i<<","<<j<<","<<k<<","<<l<<endl;
					num++;
				}
}