![](http://images0.cnblogs.com/blog/571388/201310/02222918-58ba026d46714d1d9b4984a0018882d6.jpg)
#include<stdio.h> double fact(int n); int main(void) { int i,n; double result; printf("Enter n:"); scanf("%d", &n); for(i=0;i<=n;i++){ result=fact(i); printf("%d!=%.0f ",i,result); } return 0; } double fact(int n) { int i; double product; product=1; for(i=1;i<=n;i++){ product=product*i; } return product; }