摘要： ZOJ Problem Set - 1002Fire NetTime Limit:2 Seconds Memory Limit:65536 KBSuppose that we have a square city with straight streets. A map of a city is a square board with n rows and n columns, each representing a street or a piece of wall.A blockhouse is a small castle that has four openings through w 阅读全文

摘要： ZOJ Problem Set - 3365Integer NumbersTime Limit:1 Second Memory Limit:32768 KB Special JudgeThe boy likes numbers. He has a sheet of paper. He have written a sequence of consecutive integer numbers on the sheet. The boy likes them.But then the girl came. The girl is cruel. She changed some of the nu 阅读全文

摘要： E. Collisionstime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputOn a number line there arenballs. At time moment0for each ball the following data is known: its coordinatexi, speedvi(possibly, negative) and weightmi. The radius of the balls can be ig 阅读全文

摘要： Qt帮助文档如此解释：The user interface contains visual elements that are called widgets in Qt. Examples of widgets are text edits, scroll bars, labels, and radio buttons. A widget can also be a container for other widgets; a dialog or a main application window, for example.简而言之，widget（译名：部件）就是包含可视化元素的用户接口，如编 阅读全文