JavaProgramming/HackerRank/FiftyNine.java at patch-2 · subham500071430/JavaProgramming · GitHub

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package HackerRank;

import java.io.*;

import java.util.*;

import java.text.*;

import java.math.*;

import java.util.regex.*;

public class FiftyNine {

public static void main(String[] args) {

/* Enter your code here. Read input from STDIN. Print output to STDOUT. Your class should be named Solution. */

Scanner sc = new Scanner(System.in);

// Read number of lines

int n = sc.nextInt();

sc.nextLine(); // Consume the newline after reading the integer

// Initialize an ArrayList to hold the lines of numbers

ArrayList<ArrayList<Integer>> lines = new ArrayList<>();

// Read each line

for (int i = 0; i < n; i++) {

// Read the number of integers in the line and the integers themselves

String[] input = sc.nextLine().split(" ");

ArrayList<Integer> line = new ArrayList<>();

for (int j = 1; j < input.length; j++) { // Skip the first number (count)

line.add(Integer.parseInt(input[j]));

}

lines.add(line);

}

// Read the number of queries

int q = sc.nextInt();

// Process each query

for (int i = 0; i < q; i++) {

int x = sc.nextInt() - 1; // Convert 1-based index to 0-based

int y = sc.nextInt() - 1; // Convert 1-based index to 0-based

// Check if the indices are valid

if (x >= 0 && x < n && y >= 0 && y < lines.get(x).size()) {

System.out.println(lines.get(x).get(y));

} else {

System.out.println("ERROR!");

}

sc.close();

}

JavaProgramming/HackerRank/FiftyNine.java at patch-2 · subham500071430/JavaProgramming · GitHub

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