用c语言，利用递归函数求n!,由键盘输入任一整数，求n!

//利用递归函数求n!,由键盘输入任一整数，求n!#includeunsigned long jc(unsigned long n){ if(n==1) return 1; else return n*jc(n-1);}int main(){ unsigned long n; while(scanf("%ld",&n) != EOF) { printf("%ld\n",j