It’s working in Eclipse but online judge says Wrong answer
import java.io.*;
class whileTest{
public static void main(String args[]) throws IOException{
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
int tc = Integer.parseInt(br.readLine());
while(tc--!=0){
int factOf = Integer.parseInt(br.readLine());
calculate(factOf);
}
}
public static void calculate(int factOf){ // number to find fact of
int[] array = new int[200]; // array of length 200
int m,
temp=0;
if(String.valueOf(factOf).length()==1){
array[0] = factOf; // array[0] = 5
m = 1; // m = 1
}else{
int i = 0;
int tempFact = factOf;
while(tempFact!=0){
array[i] = tempFact%10;
tempFact/=10;
i++;
}
m = 2;
}
for(int i=1;i<factOf;i++){
for(int j=0;j<m;j++){
int x = array[j]*i+temp; // 5*1+0=5
array[j] = x % 10; // 5%10=5
temp = x/10; //5/10=0
}
while(temp>0){
int y = temp % 10; // 1%10=1
array[m] = y; //array[1]=1
temp = temp/10; //1/10=0
++m;
//System.out.println(m);
}
}
int len = m-1;
for(int i=0;i<m;i++){
System.out.print(array[len--]);
}
}
}
