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摘要： 问题描述： Given n non-negative integers representing the histogram's bar height where the width of each bar is 1, find the area of largest rectangle in th 阅读全文

摘要： 问题描述：You may assume that nums1 has enough space (size that is greater or equal to m + n) to hold additional elements from nums2. The number of element 阅读全文

摘要： Remove Duplicates from Sorted List ： Given a sorted linked list, delete all duplicates such that each element appear only once. For example,Given 1->1 阅读全文

摘要： 问题描述： Given a 2D board and a word, find if the word exists in the grid. The word can be constructed from letters of sequentially adjacent cell, where 阅读全文

摘要： 问题描述： Given a set of distinct integers, nums, return all possible subsets. Note: The solution set must not contain duplicate subsets. For example,If n 阅读全文

摘要： 问题描述： Given a string, find the length of the longest substring without repeating characters. Examples: Given "abcabcbb", the answer is "abc", which th 阅读全文

摘要： 问题描述：给定字符串S，子串T，求S中包含T的最小窗口 Given a string S and a string T, find the minimum window in S which will contain all the characters in T in complexity O(n 阅读全文

摘要： 问题描述：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 阅读全文

摘要： 问题描述：矩阵每一行有序，每一行的最后一个元素小于下一行的第一个元素，查找。 算法分析：这样的矩阵其实就是一个有序序列，可以使用折半查找算法。 问题描述：二维矩阵行有序，列有序，进行查找。 算法分析：有两种方法，一种是将矩阵按中心点分成左上，左下，右上，右下，四部分，进行递归查找。 还有一种比较巧妙 阅读全文

摘要： 问题描述： 题目描述Edit DistanceGiven two words word1 and word2, find the minimum number of steps required to convert word1 to word2. (each operation is counte 阅读全文