56: Merge Intervals Given a collection of intervals, merge all overlapping intervals. Example 1: Example 2: 思路： 将区间的左端点按从小到大进行排序，然后观察相邻2个区间是否有公共部分，如果有 ...
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2020-01-30 21:10:18
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62
1302. Deepest Leaves Sum Given a binary tree, return the sum of values of its deepest leaves. Example 1: Input: root = [1,2,3,4,5,null,6,7,null,null,n ...
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2020-01-30 12:59:39
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Given a non-empty binary search tree and a target value, find the value in the BST that is closest to the target. Note: Given target value is a floati ...
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2020-01-30 12:32:09
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Given a palindromic string palindrome, replace exactly one character by any lowercase English letter so that the string becomes the lexicographically ...
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2020-01-30 09:47:14
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94
Given two sorted integer arrays nums1 and nums2, merge nums2 into nums1 as one sorted array. Note: The number of elements initialized in nums1 and num ...
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2020-01-30 09:33:10
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72
Given two sets of integers, the similarity of the sets is defined to be /, where N?c?? is the number of distinct common numbers shared by the two sets ...
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2020-01-29 21:54:49
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Zhejiang University has 40000 students and provides 2500 courses. Now given the student name lists of all the courses, you are supposed to output the ...
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2020-01-29 20:07:30
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89
题目内容 Given a Binary Search Tree and a target number, return true if there exist two elements in the BST such that their sum is equal to the given targ ...
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2020-01-29 20:00:01
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Zhejiang University has 40,000 students and provides 2,500 courses. Now given the registered course list of each student, you are supposed to output t ...
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2020-01-29 19:46:43
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81
题目内容 Given an array nums of n integers and an integer target, find three integers in nums such that the sum is closest to target. Return the sum of th ...
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2020-01-29 18:24:31
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58
