摘要：
世界的每个地区都有自己的本地时间，在Internet及无线电通信时，时间的统一非常重要！ 整个地球分为二十四时区，每个时区都有自己的本地时间。在国际无线电通信中，为统一而普遍使用一个标准时间，称为通用协调时(UTC, Universal Time Coordinated)。UTC与格林尼治平均时(G 阅读全文
摘要：
"题目链接" [A Tricky Sum ] In this problem you are to calculate the sum of all integers from 1 to n, but you should take all powers of two with minus in t 阅读全文
摘要：
题目描述 Farmer John建造了一个有N(2 include include include include include include include include include include include include include include include incl 阅读全文