Binary Trees With Factors (M) 题目 Given an array of unique integers, arr, where each integer arr[i] is strictly greater than 1. We make a binary tree u ...
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2021-03-15 11:24:45
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The land is for sale in CyberCity, and is divided into several pieces. Here it is assumed that each piece of land has exactly two neighboring pieces, ...
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2021-03-11 19:32:24
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Reverse Linked List II 反转链表 Given the head of a singly linked list and two integers left and right where left <= right, reverse the nodes of the list ...
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2021-03-10 13:27:14
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题目描述 1065 A+B and C (64bit) (20 分) Given three integers A, B and C in [?], you are supposed to tell whether A+B>C. Input Specification: The first line ...
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2021-03-10 13:11:02
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想清楚它不是DP而是贪心就好做了 首先, 我们称子树刚好包含所有某一颜色的点为临界点, 那我们要优先选择深度越深的临界点越好 用另一种方式来说, 在dfs的过程中, 第一次发现有一个点恰好为临界点,那么就选择这个点为分界线新增一个答案, 很容易想清楚, 选择越深的肯定更优, 让其它点的有更多分块的机 ...
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2021-03-09 13:33:11
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归并排序介绍: 归并排序(MERGE-SORT)是利用归并的思想实现的排序方法,该算法采用经典的分治(divide-and-conquer) 策略(分治法将问题分(divide)成一些小的问题然后递归求解,而治(conquer)的阶段则将分的阶段得到的各答案"修 补"在一起,即分而治之)。 归并排序 ...
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编程语言 时间:
2021-03-08 14:00:17
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Given an array of integers nums and an integer target. Return the number of non-empty subsequences of nums such that the sum of the minimum and maximu ...
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2021-03-03 12:23:05
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We have a collection of stones, each stone?has a positive integer weight. Each turn, we choose the two?heaviest?stones?and smash them together. Suppos ...
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2021-03-02 12:02:57
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description: There are two strings \(a\), \(b\) with the length \(n\), and \(m\). Find the Array <\(p_1, p_2, ..., p_m>\), such that \(a_{p_i}= b_i\), ...
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2021-03-01 13:26:32
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public static void main(String[] args) { LinkedList<Integer> integers = new LinkedList<>(); integers.add(1); integers.add(8); integers.add(1,3); for ( ...
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编程语言 时间:
2021-02-24 13:21:22
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