Given a nested list of integers, return the sum of all integers in the list weighted by their depth. Each element is either an integer, or a list whose elements may also be integers or other lists. E ...
2016-03-31 10:57 1 14223 推荐指数：
Given a nested list of integers, return the sum of all integers in the list weighted by their depth. Each element is either an integer, or a list ...
Given a nested list of integers, implement an iterator to flatten it. Each element is either an integer, or a list -- whose elements may also ...
Given an array w of positive integers, where w[i] describes the weight of index i, write a function pickIndex which randomly picks an index ...
Given the head of a linked list, we repeatedly delete consecutive sequences of nodes that sum to 0 until there are no such sequences. After doing ...
Given a list, rotate the list to the right by k places, where k is non-negative. For example:Given 1->2->3->4->5->NULL and k ...
Given a singly linked list L: L 0→L 1→…→L n-1→L n,reorder it to: L 0→L n →L 1→L n-1→L 2→L n-2→… You must do this in-place without altering the nodes ...
Given a linked list and a value x, partition it such that all nodes less than x come before nodes greater than or equal to x. You should preserve ...
1. 链表 数组是一种顺序表，index与value之间是一种顺序映射，以\(O(1)\)的复杂度访问数据元素。但是，若要在表的中间部分插入（或删除）某一个元素时，需要将后续的数据元素进行移动，复杂度大概为\(O(n)\)。链表（Linked List）是一种链式表，克服了上述的缺点，插入和删除 ...
