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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)
