codeforces 100935A Time program in java

Time.java

import java.util.Scanner;
public class Time
{
    public static void main(String[] args)
    {
        Scanner z=new Scanner(System.in);
        int n=z.nextInt();
        int[] ar=new int[n*6];
        for(int i=0;i<ar.length;i++)
            ar[i]=z.nextInt();
        String x="";
        for(int i=0,y=1;i<ar.length;i+=6) {
            if(ar[i+2]==0 && ar[i+5]==0) {
                if(ar[i]*60+ar[i+1]==ar[i+3]*60+ar[i+4])
                    x+="Case "+y+++": Yes\n";
                else
                    x+="Case "+y+++": No\n";
            }
            else if(ar[i+2]==0 && ar[i+5]==0 && ar[i+1]==0 && ar[i+4]==0) {
                if(ar[i]==ar[i+3])
                    x+="Case "+y+++": Yes\n";
                else
                    x+="Case "+y+++": No\n";
            }
            else {
                if((ar[i]*60+ar[i+1])*60+ar[i+2]==(ar[i+3]*60+ar[i+4])*60+ar[i+5])
                    x+="Case "+y+++": Yes\n";
                else
                    x+="Case "+y+++": No\n";
            }
        }
        System.out.println(x);
    }
}