Description: Design a stack that supports push, pop, top, and retrieving...

Description: Given a linked list, determine if it has a cycle in it. Fol...

Description: Given an array of integers, every element appears twice exc...

Description: Given a string, determine if it is a palindrome, considerin...

Description: Say you have an array for which the ith element is the pric...

Description: Say you have an array for which the ith element is the pric...

Description: Given an index k, return the kth row of the Pascal's triang...

Description: Given numRows, generate the first numRows of Pascal's trian...

Description: Given a binary tree, find its maximum depth. The maximum de...