What's wrong with this code? getting wrong answer while submitting plz smone hlp

1

#include<stdio.h>

int main(void) {
// your code goes here
int T,i;
scanf("%d",&T);
for(i=1;i<=T;i++){
int a,fact=1;
scanf("%d",&a);

       while(a>1){
         
       fact=fact*a;
       a=a-1;
       }
     
     printf("%d\n",fact);     
}
return 0;

}

2

Since you have used int data type for fact, answer might have been overflowed, better try by declaring fact as long long.

3

tried that but its still saying wrong answer

4

Can you please share question link?

5
6

Even long long int data type cant store the value of fact(100)=933262154439441526816992388562667004-
907159682643816214685929638952175999-
932299156089414639761565182862536979-
208272237582511852109168640000000000-
00000000000000, better try this `

How to compute factorial of 100 using a C/C++ program?

Find the Factorial of a large number - GeeksforGeeks

Use Big int available in java and python to compute factorial

def fact(n):
if(n==0 or n==1):
return 1
else:
return n*fact(n-1)
q=int(input())
for _ in range(q):
n=int(input())
print(fact(n))

`

7

You Can Checkout My Answer Try To Understand The Concept And Write It In C++
Or Check Out Is Editorial
My Answer Link: CodeChef: Practical coding for everyone

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.math.BigInteger;

/* Name of the class has to be "Main" only if the class is public. */
class Codechef
{
	public static void main (String[] args) throws java.lang.Exception
	{
		// your code goes here
        BufferedReader scin = new BufferedReader(new InputStreamReader(System.in));
        int t = Integer.parseInt(scin.readLine());
        while (t>0){
            int n;
            BigInteger bigInteger = new BigInteger("1");
            n = Integer.parseInt(scin.readLine());
            for (long i=2; i<=n; i++){
                bigInteger = bigInteger.multiply(BigInteger.valueOf(i));
            }
            System.out.println(bigInteger);
            t--;
        }
	}
}