Getting Wrong Answer, but input and output are correct (FCTRL2)

1

can someone explain how it detected wrong asnwer, even the input and output are correct

#include <stdio.h>

int main(){
	int t, n;
	scanf("%d", &t);
	int i, sum=1;
	if(t>=1 && t<=100){
		for(i=0;i<t;i++){
			scanf("%d", &n);
			if(n>=1 && n<=100){
				while(n>0){
					sum=sum*n;
					n--;
				}
				printf("%d\n", sum);
				sum=1;
			}
			else{
				return 0;
			}
		}
		return 0;
	}
	
	else{
		return 0;
	}
	
}
2

[quote=“mys73r10us, post:1, topic:93276”]

#include <stdio.h>

int main(){
	int t, n;
	scanf("%d", &t);
	int i, sum=1;
	if(t>=1 && t<=100){
		for(i=0;i<t;i++){
			scanf("%d", &n);
			if(n>=1 && n<=100){
				while(n>0){
					sum=sum*n;
					n--;
				}
				printf("%d\n", sum);
				sum=1;
			}
			else{
				return 0;
			}
		}
		return 0;
}
}
3

still get the wrong asnwer

4

#include<bits/stdc++.h>

#include<boost/multiprecision/cpp_int.hpp>

using namespace std;

using namespace boost :: multiprecision;

int main(){

int t;

cin>>t;

for (int i = 0; i < t; i++)

{

    int n;

    cin>>n;

    cpp_int fact = 1;

    for (int i = 2; i <= n; i++)

    {

        fact*=i;

    }

    cout<<fact<<endl;

}

return 0;

}