https://csacademy.com/contest/archive/task/binary-differences n个数,只有0和1,求所有子区间价值不相同的有多少中,价值是0的个数-1的个数 解法:0的贡献是1,1的贡献是-1,求出贡献的前缀和为s[i],利用上一个区间[l,r]求出当前区间[sum-r,sum-l],同时更新最大范围 //#pragma comment(linker, "/stack:200000000") //#pragma GCC optimize(&…

BComp.exe /silent /closescript /solo @E:\compareTest\BCbatch.txt text-report layout:side-by-side options:display-all,line-numbers title:"report" output-to:"E:\compareTest\report.htm" output-options:wrap-word,html-color "E:\Edit1&q…

Replace A Time limit: 1000 msMemory limit: 256 MB   You are given a string SS containing only letters A or B. You can take any two adjacent As and replace them by a single A. You perform operations as long as possible. Print the final string. Standar…

https://mp.weixin.qq.com/s/nQOxsZUZSiPi7Sx40mgwsA 20181104 3 differences between Savepoints and Checkpoints in Apache Flink data-artisans Flink 昨天 This episode of our Flink Friday Tip explains what Savepoints and Checkpoints are and examines the main…

A binary tree is a tree where each node may only have up to two children. These children are stored on the leftand right properties of each node. When traversing a binary tree, we have three common traversal algorithms: in order, pre-order, and post-…

This article was found from Geeksforgeeks.org. Click here to see the original article. Given an integer array of n integers, find sum of bit differences in all pairs that can be formed from array elements. Bit difference of a pair (x, y) is count of…

二叉树(Binary Tree)是最简单的树形数据结构,然而却十分精妙.其衍生出各种算法,以致于占据了数据结构的半壁江山.STL中大名顶顶的关联容器--集合(set).映射(map)便是使用二叉树实现.由于篇幅有限,此处仅作一般介绍(如果想要完全了解二叉树以及其衍生出的各种算法,恐怕要写8~10篇). 1)二叉树(Binary Tree) 顾名思义,就是一个节点分出两个节点,称其为左右子节点:每个子节点又可以分出两个子节点,这样递归分叉,其形状很像一颗倒着的树.二叉树限制了每个节点最多有两个子节…

出现场景:当点击"分类"再返回"首页"时,发生error退出   BUG描述:Caused by: java.lang.IllegalArgumentException: Binary XML file line #23: Duplicate id 0x7f0d0054, tag null, or parent id 0xffffffff with another fragment for com.example.sxq123.iljmall.FragmentCat…

题目链接:Balanced Binary Tree | LeetCode OJ Given a binary tree, determine if it is height-balanced. For this problem, a height-balanced binary tree is defined as a binary tree in which the depth of the two subtrees of every node never differ by more tha…

题目链接:Recover Binary Search Tree | LeetCode OJ Two elements of a binary search tree (BST) are swapped by mistake. Recover the tree without changing its structure. Note: A solution using O(n) space is pretty straight forward. Could you devise a constan…