Rotate List Given a list, rotate the list to the right by k places, where k is non-negative. For example: Give…

1. 题目 Given an integer, convert it to a roman numeral. Input is guaranteed to be within the range from 1 to 39…

45. Jump Game II 题目 Given an array of non-negative integers, you are initially positioned at the first index o…

  Given a binary tree struct TreeLinkNode { TreeLinkNode *left; TreeLinkNode *right; TreeLinkNode *next; …

题目： Given a binary tree, find its minimum depth. The minimum depth is the number of nodes along the shortest p…

Valid Anagram Given two strings s and t, write a function to determine if t is an anagram of s. For example, s…

  Given a string S and a string T, find the minimum window in S which will contain all the characters in …

  Given a 2d grid map of '1's (land) and '0's (water), count the number of islands. An island i…

  Your task is to calculate ab mod 1337 where a is a positive integer and b is an extremely large positiv…

  A sequence of numbers is called a wiggle sequence if the differences between successive numbers strictl…

  We are given head, the head node of a linked list containing unique integer values. We a…

题目： Say you have an array for which the ith element is the price of a given stock on day i. Des…