[题目描述] Given a set of n nuts of different sizes and n bolts of different sizes. There is a one-one mapping between nuts and bolts. Comparison of a nut to another nut or a bolt to another bolt is not allowed. It means nut can only be compared with bol…

Given a set of n nuts of different sizes and n bolts of different sizes. There is a one-one mapping between nuts and bolts. Comparison of a nut to another nut or a bolt to another bolt is not allowed. It means nut can only be compared with bolt and b…

Given a set of n nuts of different sizes and n bolts of different sizes. There is a one-one mapping between nuts and bolts. Comparison of a nut to another nut or a bolt to another bolt is not allowed. It means nut can only be compared with bolt and b…

Given a set of n nuts of different sizes and n bolts of different sizes. There is a one-one mapping between nuts and bolts. Comparison of a nut to another nut or a bolt to another bolt is not allowed. It means nut can only be compared with bolt and b…

区分DDD中的Domain, Subdomain, Bounded Context, Problem/Solution Space 译自: Domain, Subdomain, Bounded Context, Problem/Solution Space in DDD: Clearly Defined 领域驱动设设计是一种设计系统的方式,强调在领域专家和系统建造者之间创建一个通用的语言.著名的DDD原则包括:使用通用语言和确定隐性和显性. DDD中的有些概念并没有明确的定义,且高度隐晦.每个人…

Content 有一个长度为 \(n\) 的数组,请求出使得 \(a_i \oplus a_j=x\) 且 \(i\neq j\) 的数对 \((i,j)\) 的个数.其中 \(\oplus\) 表示异或符号. 数据范围:\(1\leqslant n,a_i\leqslant 10^5,0\leqslant x\leqslant 10^5\). Solution 利用一个异或的性质:\(a\oplus b=c\Rightarrow a\oplus c=b,b\oplus c=a\),我们发现问题…

https://www.lydsy.com/JudgeOnline/problem.php?id=2298 https://www.luogu.org/problemnew/show/P2519 一次考试共有n个人参加,第i个人说:“有ai个人分数比我高,bi个人分数比我低.”问最少有几个人没有说真话(可能有相同的分数) 好题啊,以及我的dp为什么这么烂……算了吐槽放后面. 参考洛谷题解. 显然a+b+1>n一定是谎话,直接特判. 然后考虑冲突,显然两人名次相同的情况下a和b不同就说明这两人只能…

[比赛链接] 点击打开链接 [题解] Problem A Word Correction[字符串] 不用多说了吧,字符串的基本操作 Problem B  Run for your prize[贪心] 我们可以将这个数轴一分为二,小于等于500000的由第一个人领,否则由第二个人领 Problem C Constructing tests[贪心][数学] 首先我们发现 : N^2 - (N / M)^2 = x (N/M向下取整) 然后我们算出N的上下界,发现: sqrt(x+1)<=N<=sq…

[题目描述] Given an array of n integer, and a moving window(size k), move the window at each iteration from the start of the array, find the median of the element inside the window at each moving. (If there are even numbers in the array, return the N/2-t…

[题目描述] Give you an integer array (index from 0 to n-1, where n is the size of this array, data value from 0 to 10000) . For each element Ai in the array, count the number of element before this element Ai is smaller than it and return count number ar…