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Given two sorted integer arrays nums1 and nums2, merge nums2 into nums1 as one sorted array.解题思路一:使用一个nums1Copy把nums1的前m个元素拷贝出来，然后把nums1Copy和nums2放进nu... 阅读全文
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Given a string s1, we may represent it as a binary tree by partitioning it to two non-empty substrings recursively.Below is one possible representatio... 阅读全文
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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 the o... 阅读全文
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Given a 2D binary matrix filled with 0's and 1's, find the largest rectangle containing all ones and return its area.解题思路：求01矩阵中，全是1的子矩阵的最大面积。把矩阵按照每一行... 阅读全文
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For example,Given height = [2,1,5,6,2,3],return 10.解题思路：参考Problem H: Largest Rectangle in a Histogram 第四种思路，或者翻译版Largest Rectangle in Histogram@LeetCo... 阅读全文
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Given a sorted linked list, delete all duplicates such that each element appear only once. For example,Given 1->1->2, return 1->2.Given 1->1->2->3->3,... 阅读全文
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Given a sorted linked list, delete all nodes that have duplicate numbers, leaving only distinct numbers from the original list. For example,Given 1->2... 阅读全文
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Follow up for "Search in Rotated Sorted Array":What if duplicates are allowed?Would this affect the run-time complexity? How and why?Write a function ... 阅读全文
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Follow up for "Remove Duplicates":What if duplicates are allowed at most twice?For example,Given sorted array nums = [1,1,1,2,2,3],Your function shou... 阅读全文
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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 "adjace... 阅读全文