10 docs tagged with "Two Pointers"

Given an array of integers, find all unique triplets that sum to zero.

Given an array of integers, find three distinct numbers whose sum is as close as possible to a given target value.

Find all unique quadruplets in a given array of integers that sum up to a specific target value.

Given an array representing the heights of vertical lines, find two lines that, along with the x-axis, form a container holding the…

Given the head of a linked list, determine if there's a cycle present.

Compute the product of all elements in an array except for the element at the current index, without using division.

Given the head of a linked list, remove the nth node from the end of the list and return its head.

Reverse the digits of a signed 32-bit integer.

Given an array of integers and a target integer, find the indices of two numbers that add up to the target.

Determine if a given string is a palindrome after converting all uppercase letters to lowercase and removing all non-alphanumeric…