GeezerVison is showing github.com — hackerrank-java/src/JavaArraylist.java at master · anishLearnsToCode/hackerrank-java

Expand file tree

JavaArraylist.java

Copy path

More file actions

28 lines (23 loc) · 878 Bytes

Copy path

28 lines (23 loc) · 878 Bytes

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

// https://www.hackerrank.com/challenges/java-arraylist/problem

import helper.InputHelper;

public class JavaArraylist {

public static void main(String[] args) {

int length = InputHelper.takeLength();

int[][] matrix = new int[length][];

for (int row = 0 ; row < length ; row++) {

int columns = InputHelper.takeLength();

matrix[row] = new int[columns];

matrix[row] = InputHelper.get1DArray(columns);

}

int queries = InputHelper.takeLength();

while (queries-- > 0) {

int row = InputHelper.takeLength();

int column = InputHelper.takeLength();

System.out.println(

row - 1 < length && column - 1 < matrix[row - 1].length

? matrix[row - 1][column - 1]

: "ERROR!"

);

}