String Split and Join in Python - HackerRank Solution

Problem Statement :

In Python, a string can be split on a delimiter.

Example:

      >>> a = "this is a string" 

      >>> a = a.split(" ") # a is converted to a list of strings. 

      >>> print a

      ['this', 'is', 'a', 'string']

Joining a string is simple:

      >>> a = "-".join(a)

      >>> print a

      this-is-a-string 

Task:

      You are given a string. Split the string on a " " (space) delimiter and join using a - hyphen.

Input Format:

      The first line contains a string consisting of space separated words.

Output Format:

      Print the formatted string as explained above.

Solution:

 def split_and_join(line):
    # write your code here
    line=line.split(" ")
    return ('-'.join(line))

    
if __name__ == '__main__':
    line = input()
    result = split_and_join(line)
    print(result)