https://www.hackerrank.com/challenges/np-concatenate
Problem
Two or more arrays can be concatenated together using the concatenate function with a tuple of the arrays to be joined.
Task
You are given two integer arrays of size N X P and M X P (N & M are rows, and P is the column). Your task is to concatenate the arrays along axis 0.
Input Format
The first line contains space separated integers N, M and P. The next N lines contains the space separated elements of the P columns. After that, the next M lines contains the space separated elements of the P columns.
Output Format
Print the concatenated array of size (N + M) X P.
Sample Input 0
4 3 2
1 2
1 2
1 2
1 2
3 4
3 4
3 4
Sample Output 0
[[1 2]
[1 2]
[1 2]
[1 2]
[3 4]
[3 4]
[3 4]]