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 Mutations 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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Introduction To Python
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.
Python is a computer programming language often used to build websites and software, automate tasks, and conduct data analysis. It is also used to create various machine learning algorithm, and helps in Artificial Intelligence. Python is a general purpose language, meaning it can be used to create a variety of different programs and isn’t specialized for any specific problems. This versatility, along with its beginner-friendliness, has made it one of the most-used programming languages today. A survey conducted by industry analyst firm RedMonk found that it was the most popular programming language among developers in 2020.
Link for the Problem – Set Mutations in python – HackerRank Solution
Set Mutations in python – HackerRank Solution
Problem:
We have seen the applications of union, intersection, difference and symmetric difference operations, but these operations do not make any changes or mutations to the set.
We can use the following operations to create mutations to a set:
.update() or |=
Update the set by adding elements from an iterable/another set.
>>> H = set("Hacker")
>>> R = set("Rank")
>>> H.update(R)
>>> print H
set(['a', 'c', 'e', 'H', 'k', 'n', 'r', 'R'])
.intersection_update() or &=
Update the set by keeping only the elements found in it and an iterable/another set.
>>> H = set("Hacker")
>>> R = set("Rank")
>>> H.intersection_update(R)
>>> print H
set(['a', 'k'])
.difference_update() or -=
Update the set by removing elements found in an iterable/another set.
>>> H = set("Hacker")
>>> R = set("Rank")
>>> H.difference_update(R)
>>> print H
set(['c', 'e', 'H', 'r'])
.symmetric_difference_update() or ^=
Update the set by only keeping the elements found in either set, but not in both.
>>> H = set("Hacker")
>>> R = set("Rank")
>>> H.symmetric_difference_update(R)
>>> print H
set(['c', 'e', 'H', 'n', 'r', 'R'])
TASK
You are given a set and number of other sets. These number of sets have to perform some specific mutation operations on set .
Your task is to execute those operations and print the sum of elements from set .
Input Format
The first line contains the number of elements in set .
The second line contains the space separated list of elements in set .
The third line contains integer , the number of other sets.
The next lines are divided into parts containing two lines each.
The first line of each part contains the space separated entries of the operation name and the length of the other set.
The second line of each part contains space separated list of elements in the other set.
len(set(A))
len(otherSets)
Output Format
Output the sum of elements in set .
Sample Input
16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 24 52 4 intersection_update 10 2 3 5 6 8 9 1 4 7 11 update 2 55 66 symmetric_difference_update 5 22 7 35 62 58 difference_update 7 11 22 35 55 58 62 66
Sample Output
38
Explanation
After the first operation, (intersection_update operation), we get:
set
After the second operation, (update operation), we get:
set
After the third operation, (symmetric_difference_update operation), we get:
set
After the fourth operation, ( difference_update operation), we get:
set
The sum of elements in set after these operations is .
Set Mutations in python – HackerRank Solution
# Set Mutations in python - Hacker Rank Solution
# python 3
# Enter your code here. Read input from STDIN. Print output to STDOUT
# Set Mutations in python - Hacker Rank Solution START
len_set = int(input())
storage = set(map(int, input().split()))
op_len = int(input())
for i in range(op_len):
operation = input().split()
if operation[0] == 'intersection_update':
temp_storage = set(map(int, input().split()))
storage.intersection_update(temp_storage)
elif operation[0] == 'update':
temp_storage = set(map(int, input().split()))
storage.update(temp_storage)
elif operation[0] == 'symmetric_difference_update':
temp_storage = set(map(int, input().split()))
storage.symmetric_difference_update(temp_storage)
elif operation[0] == 'difference_update':
temp_storage = set(map(int, input().split()))
storage.difference_update(temp_storage)
else :
assert False
print(sum(storage))
# Set Mutations in python - Hacker Rank Solution END
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