Gson解析JSON字符串时出现了下面的错误: No-args constructor for class X does not exist. Register an InstanceCreator with Gson for this type to fix this problem. 解决的办法是把对应的Class改成静态类.…
I joined the NodeJS online Course three weeks ago, but now I'm late about 2 weeks. I pay the codeschool yearly subscribed, but I have lost the track long time. I get more weight than expected. I like more and more my MacBook Pro I maybe go to the UST…
Programming Contest Problem Types Hal Burch conducted an analysis over spring break of 1999 and made an amazing discovery: there are only 16 types of programming contest problems! Furthermore, the top several comprise almost 80% of the problems s…
You are given two jugs with capacities x and y litres. There is an infinite amount of water supply available. You need to determine whether it is possible to measure exactly z litres using these two jugs. If z liters of water is measurable, you must…
A city's skyline is the outer contour of the silhouette formed by all the buildings in that city when viewed from a distance. Now suppose you are given the locations and height of all the buildings as shown on a cityscape photo (Figure A), write a pr…
A^B Problem 时间限制:1000 ms | 内存限制:65535 KB 难度:2 描述 Give you two numbers a and b,how to know the a^b's the last digit number.It looks so easy,but everybody is too lazy to slove this problem,so they remit to you who is wise. 输入 There are mutiple te…
A Simple Tree Problem Time Limit: 3 Seconds Memory Limit: 65536 KB Given a rooted tree, each node has a boolean (0 or 1) labeled on it. Initially, all the labels are 0. We define this kind of operation: given a subtree, negate all its labels. An…
K - Yet Another Multiple Problem Time Limit:20000MS Memory Limit:65536KB 64bit IO Format:%I64d & %I64u Submit Status Practice HDU 4474 Appoint description: System Crawler (2014-10-16) Description There are tons of problems about integer mul…
Recently ,I got confused When I use git to push one of my project. The problem is below: And I Found the solutions below maybe helpful to someone who meet the problem: Dealing with non-fast-forward errors Sometimes, Git can't make your change to a…
Cisco的VPN客户端最近报"AnyConnect was not able to establish connection to the specified secure gateway." 导致连不上公司VPN了. 有人说取消共享 Problem: AnyConnect was not able to establish a connection to the specified secure gateway. Please try connecting again. Envir…
To save a visual to an image file need to use RenderTargetBitmap, detail is reference to Save and read images in WPF. But sometimes you will find the output image was shifted or left blank. This is because that RenderTargetBitmap render the visual…
B. A Trivial Problem time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Mr. Santa asks all the great programmers of the world to solve a trivial problem. He gives them an integer m and asks f…
Link http://acm.hust.edu.cn/vjudge/contest/121539#problem/C Description standard input/output After a long ACM training day, Master Hasan invited his trainees for a light dinner in the cafeteria. The cafeteria has N tables, each with a number of chai…
Link http://acm.hust.edu.cn/vjudge/contest/121539#problem/B Description standard input/output Although Haneen was able to solve the LCS problem, Dr. Ibrahim is suspicious about whether she really understands the LCS problem or not. He believes that s…
