• + 0 comments

    how solve this i failed from 1/6 test cases there is error show in test case 5 import java.io.; import java.util.; import java.text.; import java.math.; import java.util.regex.*;

    public class Solution {

    public static void main(String[] args) { Scanner s = new Scanner(System.in); int t = s.nextInt(); String [] pair_left = new String[t]; String [] pair_right = new String[t];

        for (int i = 0; i < t; i++) {
            pair_left[i] = s.next();
            pair_right[i] = s.next();
        }
    

    // ... your previous code unchanged ... Set hashSet = new HashSet<>(); for (int i = 0; i < t; i++){ hashSet.add(pair_left[i]+" "+pair_right[i]);hoow System.out.println(hashSet.size()); } } }