itertools.product() in Python HackerRank Solution

Hello Programmers, In this post, you will know how to solve the itertools.product() in Python HackerRank Solution. This problem is a part of the HackerRank Python Programming Series.

One more thing to add, don’t directly look for the solutions, first try to solve the problems of Hackerrank by yourself. If you find any difficulty after trying several times, then you can look for solutions.

itertools.product() in Python HackerRank Solution

problem

itertools.product()
This tool computes the cartesian product of input iterables.
It is equivalent to nested for-loops.
For example, product(A, B) returns the same as ((x,y) for x in A for y in B).

Sample Code :

>>> from itertools import product
>>>
>>> print list(product([1,2,3],repeat = 2))
[(1, 1), (1, 2), (1, 3), (2, 1), (2, 2), (2, 3), (3, 1), (3, 2), (3, 3)]
>>>
>>> print list(product([1,2,3],[3,4]))
[(1, 3), (1, 4), (2, 3), (2, 4), (3, 3), (3, 4)]
>>>
>>> A = [[1,2,3],[3,4,5]]
>>> print list(product(*A))
[(1, 3), (1, 4), (1, 5), (2, 3), (2, 4), (2, 5), (3, 3), (3, 4), (3, 5)]
>>>
>>> B = [[1,2,3],[3,4,5],[7,8]]
>>> print list(product(*B))
[(1, 3, 7), (1, 3, 8), (1, 4, 7), (1, 4, 8), (1, 5, 7), (1, 5, 8), (2, 3, 7), (2, 3, 8), (2, 4, 7), (2, 4, 8), (2, 5, 7), (2, 5, 8), (3, 3, 7), (3, 3, 8), (3, 4, 7), (3, 4, 8), (3, 5, 7), (3, 5, 8)]

Task :

You are given a two lists A and B. Your task is to compute their cartesian product AXB.Example :

A = [1, 2]
B = [3, 4]
AxB = [(1, 3), (1, 4), (2, 3), (2, 4)]

Note: A and B are sorted lists, and the cartesian product’s tuples should be output in sorted order.

Input Format :

The first line contains the space separated elements of list A.
The second line contains the space separated elements of list B.
Both lists have no duplicate integer elements.

Constraints :

• 0 < A < 30
• 0 < B < 30

Output Format :

Output the space separated tuples of the cartesian product.

Sample Input :

 1 2
 3 4

Sample Output :

(1, 3) (1, 4) (2, 3) (2, 4)

itertools.product() in Python HackerRank Solutions

# itertools.product() in Python - Hacker Rank Solution
# Enter your code here. Read input from STDIN. Print output to STDOUT
# itertools.product() in Python - Hacker Rank Solution START
from itertools import product
A = input().split()
A = list(map(int,A))
B = input().split()
B = list(map(int, B))
output = list(product(A,B))
for i in output:
    print(i, end = " ");
# itertools.product() in Python - Hacker Rank Solution END

Disclaimer: The above Problem (itertools.product() in Python) is generated by Hackerrank but the Solution is Provided by BrokenProgrammers. This tutorial is only for Educational and Learning purposes.

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