More Problems

• Find all contiguous subarrays whose product is less than a target using two pointers.
• Find the longest subarray that contains at most two distinct characters using two pointers.
• Check if a sequence of parentheses is valid using two pointers.
• Find the maximum difference between two elements in an array where the smaller element comes before the larger one.
• Find the k-th largest element in an unsorted array using two pointers.
• Check if a string can be made into a palindrome by deleting one character using two pointers.
• Find the maximum sum of a subarray with at most k distinct elements using two pointers.
• Find the longest even-length palindromic substring in a given string using two pointers.