Print Alternate Row

 You are given a 2D matrix , your task is print the alternate rows of the matrix starting from the 0th row.

Input Format

First line contains, m and n depicting the size of matrix.

m*n Integer values, depicting all the elements of matrix.

Constraints

1 <= m and n <=1000

-1000<=mat[i][j]<=1000

Output Format

Print the alternate row.

Sample Input 0

4

6

2 3 8 7 0 4

0 7 6 7 3 5

0 0 8 1 0 8

9 1 9 5 3 0

Sample Output 0

2 3 8 7 0 4 

0 0 8 1 0 8 

Explanation 0

Print the alternate row i.e 0th row and 2nd row in the above example.

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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 sc=new Scanner(System.in); int m=sc.nextInt(); int n=sc.nextInt(); int[][] arr=new int[m][n]; for(int i=0; i<m; i++){ for(int j=0; j<n; j++){ arr[i][j]=sc.nextInt(); } } for(int i=0; i<m; i+=2){ for(int j=0; j<n; j++){ System.out.print(arr[i][j]+" "); } System.out.println(); } } } >