The Balance Time Limit: 5000MS Memory Limit: 65536K Total Submissions: 5452 Accepted: 2380 Description Ms. Iyo Kiffa-Australis has a balance and only two kinds of weights to measure a dose of medicine. For example, to measure 200mg of aspirin usi…
Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 3192 Accepted Submission(s): 371 Problem Description You are given a rooted tree of N nodes, labeled from 1 to N. To the ith node a non-negat…
传送门 Problem Statement You are given a tree where each node is labeled from 1 to n. How many similar pairs(S) are there in this tree? A pair (A,B) is a similar pair if the following are true: node A is the ancestor of node B abs(A−B)≤T Input format: T…
uva12546. LCM Pair Sum One of your friends desperately needs your help. He is working with a secret agency and doing some encoding stuffs. As the mission is confidential he does not tell you much about that, he just want you to help him with a specia…
题目链接 http://acm.split.hdu.edu.cn/showproblem.php?pid=5877 Problem Description You are given a rooted tree of N nodes, labeled from 1 to N. To the ith node a non-negative value ai is assigned.An ordered pair of nodes (u,v) is said to be weak if (1) u…
[codeforces 317]A. Perfect Pair 试题描述 Let us call a pair of integer numbers m-perfect, if at least one number in the pair is greater than or equal to m. Thus, the pairs (3, 3) and (0, 2) are 2-perfect while the pair (-1, 1) is not. Two integers x, y a…
Weak Pair Problem Description You are given a rooted tree of N nodes, labeled from 1 to N. To the ith node a non-negative value ai is assigned.An ordered pair of nodes (u,v) is said to be weak if (1) u is an ancestor of v (Note: In this problem a…
Finding the Centroid of a Room Boundary It's been a while since my last post and I'm sure most of you were like... "Where the hell is Don!".... it's ok! I'm still around. I've been busy working on stuff I can't talk about. Don't worry though, I'…
作业提交时间:10月9日上课前. Design and implement an Elevator Scheduler to aim for both correctness and performance, in managed code. Skills to learn and practice: a) Peer to peer collaboration b) Requirement Analysis c) Design by contract, Int…
RFID Exploration Louis Yi, Mary Ruthven, Kevin O'Toole, & Jay Patterson What did you do? We made an Radio Frequency ID (RFID) card reader and, while attempting to create a long-range spoofer, created an jammer which overcomes card's signals. The read…
network namespace 创建network namespace # ip netns add blue # ip netns list blue 添加网口到namespace 先创建veth # ip link add veth0 type veth peer name veth1 在当前namespace可以看到veth0和veth1 # ip link list 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue st…
zz from 百度百科 最早的Java建置方案是由一套转译程式(interpreter),将每个Java指令都转译成对等的微处理器指令,并根据转译后的指令先后次序依序执行,由于一个Java指令可能被转译成十几或数十几个对等的微处理器指令,这种模式执行的速度相当缓慢. 针对这个问题,业界首先开发出JIT(just in time)编译器.当Java执行runtime环境时,每遇到一个新的类别(class:类别是Java程式中的功能群组),JIT编译器在此时就会针对这个类别进行编译(compile…