Factorial- Geeksforgeeks

Question:

Factorial: Geeksforgeeks

Calculate the factorial for a given number.


The first line contains an integer 'T' denoting the total number of test cases. In each test cases, it contains an integer 'N'.

1<=T<=19
0<=N<=18

Input:

    8
    18
    17
    16
    15
    11
    10
    5
    1

Output:

    6402373705728000    
    355687428096000
    20922789888000
    1307674368000
    39916800
    3628800
    120
    1

Code:

#include<stdio.h>
long long int factorial(long long int n)
{
 if (n==0)
 {
  return 1;
 }
 return n*factorial(n-1);
}
int func()
{
 long long int n;
 scanf("%lld",&n);
 printf("%lld\n",factorial(n));
}
int main()
{
 int cases,i;
 scanf("%d",&cases);
 for(i=0;i<cases;i++)
 {
  func();
 }
 return 0 ;
}

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