Reverse String

Question

Write a function that takes a string as input and returns the string reversed.

Example: Given s = "hello", return "olleh".

Tags

• String

Thought

Two solutions: use list or not use index.

Code

class Solution(object):
    def reverseString(self, s):
        """
        :type s: str
        :rtype: str
        """
        ch_list = list(s)
        ch_list.reverse()
        return ''.join(ch_list)

class Solution(object):
    def reverseString(self, s):
        """
        :type s: str
        :rtype: str
        """
        return s[::-1]