Merge the Tools in python | HackerRank Programming Solutions | HackerRank Python Solutions

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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 – Merge the Tools in python – HackerRank Solution

Merge the Tools in python – HackerRank Solution

Consider the following:

• A string, , of length  where .
• An integer, , where  is a factor of .

We can split  into  substrings where each subtring, , consists of a contiguous block of  characters in . Then, use each  to create string  such that:

• The characters in  are a subsequence of the characters in .
• Any repeat occurrence of a character is removed from the string such that each character in  occurs exactly once. In other words, if the character at some index  in  occurs at a previous index  in , then do not include the character in string .

Given  and , print  lines where each line  denotes string .

Example

There are three substrings of length  to consider: ‘AAA’, ‘BCA’ and ‘DDE’. The first substring is all ‘A’ characters, so . The second substring has all distinct characters, so . The third substring has  different characters, so . Note that a subsequence maintains the original order of characters encountered. The order of characters in each subsequence shown is important.

Function Description

Complete the merge_the_tools function in the editor below.

merge_the_tools has the following parameters:

• string s: the string to analyze
• int k: the size of substrings to analyze

Prints

Print each subsequence on a new line. There will be  of them. No return value is expected.

Input Format

The first line contains a single string, .
The second line contains an integer, , the length of each substring.

Constraints

• , where  is the length of 
• It is guaranteed that  is a multiple of .

Sample Input

STDIN       Function
-----       --------
AABCAAADA   s = 'AABCAAADA'
3           k = 3

Sample Output

AB
CA
AD

Explanation

Split  into  equal parts of length . Convert each  to  by removing any subsequent occurrences of non-distinct characters in :

Print each  on a new line.

Merge the Tools in python – HackerRank Solution

from collections import OrderedDict
def merge_the_tools(string, k):
    # your code goes here
    strlen = len(string)
    for i in range(0,strlen,k):
        print(''.join(OrderedDict.fromkeys(string[i:i + k])))
# Merge the Tools in python - Hacker Rank Solution END
if __name__ == '__main__':
    string, k = input(), int(input())
    merge_the_tools(string, k)