## Algorithm

Problem Name: Python - Dot and Cross

In this HackerRank Functions in PYTHON problem solution,

dot

The dot tool returns the dot product of two arrays.

import numpy

A = numpy.array([ 1, 2 ])
B = numpy.array([ 3, 4 ])

print numpy.dot(A, B)       #Output : 11


cross

The cross tool returns the cross product of two arrays.

import numpy

A = numpy.array([ 1, 2 ])
B = numpy.array([ 3, 4 ])

print numpy.cross(A, B)     #Output : -2


You are given two arrays A and B. Both have dimensions of N * M.

Input Format

The first line contains the integer N.

The next N lines contains space separated integers of array A.

The following N lines contains N space separated integers of array B.

Output Format

Print the matrix multiplication of A and B.

Sample Input

2
1 2
3 4
1 2
3 4


Sample Output

[[ 7 10]
[15 22]]

## Code Examples

### #1 Code Example with Python Programming

Code - Python Programming


import numpy as np

# Shape
N = int(input())

# Input 2 2-D square matrices
A,B = (np.array([input().split() for _ in range(N)],dtype = 'i') for _ in range(2))
print(np.dot(A,B))

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