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In this post, you will find the solution for Find a string 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 – Find a string in Python – HackerRank Solution
Find a string in Python – HackerRank Solution
In this challenge, the user enters a string and a substring. You have to print the number of times that the substring occurs in the given string. String traversal will take place from left to right, not from right to left.
NOTE: String letters are case-sensitive.
Input Format
The first line of input contains the original string. The next line contains the substring.
Constraints
Each character in the string is an ascii character.
Output Format
Output the integer number indicating the total number of occurrences of the substring in the original string.
Sample Input
ABCDCDC CDC
Sample Output
2
Concept
Some string processing examples, such as these, might be useful.
There are a couple of new concepts:
In Python, the length of a string is found by the function len(s), where is the string.
To traverse through the length of a string, use a for loop:
for i in range(0, len(s)):
print (s[i])
A range function is used to loop over some length:
range (0, 5)
Here, the range loops over to . is excluded.
Find a string in Python – HackerRank Solution
def count_substring(string, sub_string):
# Find a string in Python - Hacker Rank Solution START
count = 0
for i in range(len(string)-len(sub_string)+1):
if (string[i:i+len(sub_string)] == sub_string):
count += 1
return count
# Find a string in Python - HackerRank Solution END
if __name__ == '__main__':
string = raw_input().strip()
sub_string = raw_input().strip()
count = count_substring(string, sub_string)
print count
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