Hello Programmers/Coders, Today we are going to share solutions of Programming problems of HackerRank of Programming Language Python. At Each Problem with Successful submission with all Test Cases Passed, you will get an score or marks. And after solving maximum problems, you will be getting stars. This will highlight your profile to the recruiters.
In this post, you will find the solution for set.union() Operators in Python-HackerRank Problem. We are providing the correct and tested solutions of coding problems present on HackerRank. If you are not able to solve any problem, then you can take help from our Blog/website.
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Python is a widely-used, interpreted, object-oriented, and high-level programming language with dynamic semantics, used for general-purpose programming. It was created by Guido van Rossum, and first released on February 20, 1991.
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Link for the Problem – set.union() Operators in Python โ HackerRank Solution
set.union() Operators in Python โ HackerRank Solution
.union()
The .union() operator returns the union of a set and the set of elements in an iterable.
Sometimes, the | operator is used in place of .union() operator, but it operates only on the set of elements in set.
Set is immutable to the .union() operation (or | operation).
Example
>>> s = set("Hacker")
>>> print s.union("Rank")
set(['a', 'R', 'c', 'r', 'e', 'H', 'k', 'n'])
>>> print s.union(set(['R', 'a', 'n', 'k']))
set(['a', 'R', 'c', 'r', 'e', 'H', 'k', 'n'])
>>> print s.union(['R', 'a', 'n', 'k'])
set(['a', 'R', 'c', 'r', 'e', 'H', 'k', 'n'])
>>> print s.union(enumerate(['R', 'a', 'n', 'k']))
set(['a', 'c', 'r', 'e', (1, 'a'), (2, 'n'), 'H', 'k', (3, 'k'), (0, 'R')])
>>> print s.union({"Rank":1})
set(['a', 'c', 'r', 'e', 'H', 'k', 'Rank'])
>>> s | set("Rank")
set(['a', 'R', 'c', 'r', 'e', 'H', 'k', 'n'])
Task
The students of District College have subscriptions to English and French newspapers. Some students have subscribed only to English, some have subscribed to only French and some have subscribed to both newspapers.
You are given two sets of student roll numbers. One set has subscribed to the English newspaper, and the other set is subscribed to the French newspaper. The same student could be in both sets. Your task is to find the total number of students who have subscribed to at least one newspaper.
Input Format
The first line contains an integer, , the number of students who have subscribed to the English newspaper.
The second line contains space separated roll numbers of those students.
The third line contains , the number of students who have subscribed to the French newspaper.
The fourth line contains space separated roll numbers of those students.
Constraints
Output Format
Output the total number of students who have at least one subscription.
Sample Input
9 1 2 3 4 5 6 7 8 9 9 10 1 2 3 11 21 55 6 8
Sample Output
13
Explanation
Roll numbers of students who have at least one subscription:
and . Roll numbers: and are in both sets so they are only counted once.
Hence, the total is students.
set.union() Operators in Python โ HackerRank Solution# set.union() Operators in Python - Hacker Rank Solution # Python 3 # Enter your code here. Read input from STDIN. Print output to STDOUT # set.union() Operators in Python - Hacker Rank Solution START N1 = int(input()) storage1 = set(input().split()); N2 = int(input()) storage2 = set(input().split()); storage3 = storage1.union(storage2) print(len(storage3)) # set.union() Operators in Python - Hacker Rank Solution END
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