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# itertools.product() Hacker Rank Solution – Queslers

## Problem: itertools.product() Hacker Rank Solution

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)]
``````

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.

• 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() Hacker Rank Solution in Python 2

``````from itertools import product

A = map(int,raw_input().split())
B = map(int,raw_input().split())
print " ".join(str(k) for k in product(A,B))``````

### itertools.product() Hacker Rank Solution in Python 3

``````# Enter your code here. Read input from STDIN. Print output to STDOUT

from itertools import product
a = map(int, input().split())
b = map(int, input().split())

print(*product(a, b))``````

### itertools.product() Hacker Rank Solution in pypy

``````from itertools import product
flist = map(int, raw_input().split())
slist = map(int, raw_input().split())

for item in product(flist, slist):
print tuple(item), ``````

### itertools.product() Hacker Rank Solution in pypy3

``````import itertools
# Enter your code here. Read input from STDIN. Print output to STDOUT
A = list(map(int,input().split()))
B = list(map(int,input().split()))

p = list(itertools.product(A,B))
print(" ".join(map(str,p)))``````
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