﻿ Find all factorial numbers less than or equal to N - 鸿网互联

# Find all factorial numbers less than or equal to N

A number N is called a factorial number if it is the factorial of a positive integer. For example, the first few factorial numbers are 1, 2, 6, 24, 120, … Given a number N, the task is to print all factorial numbers smaller than or equal

A number N is called a factorial number if it is the factorial of a positive integer. For example, the first few factorial numbers are 1, 2, 6, 24, 120, …
Given a number N, the task is to print all factorial numbers smaller than or equal to N.

Input:
The first line of input contains an integer T denoting the number of test cases. Then T test cases follow. Each test case contains a number N as input.

Output:
For each test case, print all factorial numbers smaller than or equal to N in new line.

Constraints:
1<=T<=100
1<=N<=1018

Example:
Input:
2
2
6

Output:
1 2
1 2 6

```#include <stdio.h>
#include <stdlib.h>

int main()
{
int num,i,mul=1;
scanf("%d",&num);
int *NN=(int *)malloc(sizeof(int)*num);
for(i=0;i<num;i++)
scanf("%d",&NN[i]);
long long *result=(long long *)malloc(sizeof(long long)*20);
for(i=1;i<20;i++) //先讲符合条件的结果保存到数组result中
{
mul=mul*i;
result[i-1]=mul;
}
for(i=0;i<num;i++)
{
int j;
for(j=0;j<20;j++)
{
if(NN[i]>=result[j])
{
printf("%d ",result[j]);
}
else
break;
}
printf("\n");
}
return 0;
}
```

OK，如果有问题，请留言。

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