Sliding window and two pointers in Python

Problems to practice

• Longest Substring Without Repeating Characters
• Maximum Sum Subarray of Size K
• Minimum Window Substring
• Container With Most Water
• Valid Palindrome

Example: two pointers palindrome

def is_palindrome(s):
    left, right = 0, len(s) - 1
    while left < right:
        if s[left] != s[right]:
            return False
        left += 1
        right -= 1
    return True