摘要： 题目： Given two integers n and k, return all possible combinations of k numbers out of 1 ... n. For example,If n = 4 and k = 2, a solution is: [ [2,4], 阅读全文

摘要： 题目： Given an array with n objects colored red, white or blue, sort them so that objects of the same color are adjacent, with the colors in the order r 阅读全文

摘要： 题目： Write an efficient algorithm that searches for a value in an m x n matrix. This matrix has the following properties: Integers in each row are sort 阅读全文

摘要： 题目： Given a m x n matrix, if an element is 0, set its entire row and column to 0. Do it in place. 链接： http://leetcode.com/problems/set-matrix-zeroes/ 阅读全文

摘要： 题目： Given an absolute path for a file (Unix-style), simplify it. For example,path = "/home/", => "/home"path = "/a/./b/../../c/", => "/c" Corner Cases 阅读全文

摘要： 题目： Given a m x n grid filled with non-negative numbers, find a path from top left to bottom right which minimizes the sum of all numbers along its pa 阅读全文

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摘要： DescriptionGiven a node from a cyclic linked list which has been sorted, write a function to insert a value into the list such that it remains a cycli 阅读全文