Accenture Coding Question | Row wise 2D array Sort | June 2021

Problem Statement: Implement a function

int[][] Sort2DArraysByRow(int m,int n,int arr[][])

The function accepts a two-dimensional integer array ‘arr’ of ‘m’ rows and ‘n’ columns . Implement the function to return 2D array after sorting each row of array ‘arr’ in ascending array.

Assumption:

1. m>0 and n>0

2. Array index starts from (0,0).

Note: You need to sort each row in ascending order.

Example:

Input:

3

4

7             9             2             4

3             2             5             4

9             7             8             1

Output:

2             4             7             9

2             3             4             5

1             7             8             9

import java.io.*;

 class Sort2DMatrix {

	static int[][] Sort2DArraysByRow(int m,int n,int arr[][])
	{
		
		for (int i = 0; i < m; i++) 
                {
		for (int j = 0; j < n; j++) 
                {
		for (int k = 0; k < n - j - 1; k++)
                {
			if (arr[i][k] > arr[i][k + 1]) 
                        {
			 int t = arr[i][k];
			 arr[i][k] = arr[i][k + 1];
			 arr[i][k + 1] = t;
			}
				}
			}
		}		
		return arr;
	}

	public static void main(String args[])
	{
                int m=3,n=4;
		int arr[][] = { { 7,9,2,4 },{ 3,2,5,4 },{ 9,7,8,1 } };
		
                int[][] ar=new int[m][n];
                
                ar=Sort2DArraysByRow(m,n,arr);
                
                for (int i = 0; i < 3; i++) {
			for (int j = 0; j < 4; j++)
				System.out.print(ar[i][j] + " ");
			System.out.println();
		}
	}
}
/*
OUTPUT
2 4 7 9 
2 3 4 5 
1 7 8 9 
*/

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