OJ Board

i don't know why im gettin a WA
import java.util.Scanner;

class Main {
public static void main(String [] args)
{
Main mc=new Main();
mc.begin();

}
void begin()
{
Scanner sc =new Scanner(System.in);
int cases =sc.nextInt();
int l,w,h,vol=0,mvol=0;
double f=0,max=0;
while(cases!=0 ...

this code works well in Eclipse , i don't know why im getting Time limit exceeded , can anyone help ???
import java.util.Scanner;
import java.util.LinkedHashMap;
/*
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