Given inorder and postorder traversal of a tree, construct the binary tree. Note:You may assume that duplicates do not exist in the tree. For example, ...
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其他好文 时间:
2020-05-22 13:12:40
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54
Description Given an array A of integers, return the number of (contiguous, non empty) subarrays that have a sum divisible by K. Example 1: Note: 1 思路 ...
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编程语言 时间:
2020-05-22 12:29:23
阅读次数:
47
Given a m * n matrix of ones and zeros, return how many square submatrices have all ones. Example 1: Input: matrix = [ [0,1,1,1], [1,1,1,1], [0,1,1,1] ...
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其他好文 时间:
2020-05-22 09:28:21
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57
Given a non-empty array of integers, return the third maximum number in this array. If it does not exist, return the maximum number. The time complexi ...
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其他好文 时间:
2020-05-21 10:38:00
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54
Given a string that contains only digits 0-9 and a target value, return all possibilities to add binary operators (not unary) +, -, or * between the d ...
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其他好文 时间:
2020-05-21 09:38:29
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44
[抄题]: Write a function to delete a node (except the tail) in a singly linked list, given only access to that node. Given linked list -- head = [4,5,1, ...
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其他好文 时间:
2020-05-21 00:30:28
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49
题意描述 给定一个二叉树,返回其节点值的层数顺序遍历。 (即,从左到右,逐级)。 测试用例 Given binary tree , return its level order traversal as: 解题思路 一、思路一 使用递归,根据树深度判断节点值应该添加入集合的哪个位置。 二、思路二 使 ...
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其他好文 时间:
2020-05-20 23:56:25
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78
给定一个整数n,包含 n个左括号和 n个右括号,将这n对括号组成有效的符号类型。For example, given n = 3, a solution set is:[ "((()))", "(()())", "(())()", "()(())", "()()()"] 思路来源,Grandyang ...
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其他好文 时间:
2020-05-19 18:18:43
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47
import osimport shutildef CopyFile(original_path,target_path,choose_item): # get all file path under the given folder path_list = [] list1 = os.listdi ...
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其他好文 时间:
2020-05-19 12:49:55
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59
题目 Given a pair of positive integers, for example, 6 and 110, can this equation 6 = 110 be true? The answer is yes, if 6 is a decimal number and 110 i ...
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其他好文 时间:
2020-05-19 01:04:00
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58