APS Labs 3 Cik Cak Sekvenca

import java.io.BufferedReader;
import java.io.InputStreamReader;

public class ZigZagSequence {

    static int najdiNajdolgaCikCak(int a[]) {
        int counter = 1, max = 1;
        for(int i=0; i<a.length-1; i++){
            if((a[i]>0 && (a[i+1])<0) || (a[i]<0 && (a[i+1])>0))
                counter++;
            else
                counter = 1;
            if(counter > max)
                max = counter;
        }
        return max;
    }

    public static void main(String[] args) throws Exception {
        int i,j,k;

        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

        int N = Integer.parseInt(br.readLine());
        int a[] = new int[N];
        for (i=0;i<N;i++)
            a[i] = Integer.parseInt(br.readLine());

        int rez = najdiNajdolgaCikCak(a);
        System.out.println(rez);

        br.close();

    }

}