Algorithm
Problem Name: Python -
In this HackerRank Functions in PYTHON problem solution,
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
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
Task
You are given two arrays A and B. Both have dimensions of N * M.
Your task is to compute their matrix product.
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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