Countries and Regions 国家或地区 国际域名缩写 电话代码 时差 Angola 安哥拉 AO -7 Afghanistan 阿富汗 AF 93 0 Albania 阿尔巴尼亚 AL 355 -7 Algeria 阿尔及利亚 DZ -8 Andorra 安道尔共和国 AD -8 Anguilla 安圭拉岛 AI -12 Antigua and Barbuda 安提瓜和巴布达 AG -12 Argentina 阿根廷 AR -11 Armenia 亚美尼亚 AM 374 -6 A
A. Drone With a Camera 三分套三分. #include<cstdio> #include<cmath> #include<algorithm> using namespace std; typedef long double ld; const ld K=1e9,inf=1e100,eps=1e-9; const int T=200; struct P{ ld x,y; P(){} P(ld _x,ld _y){x=_x,y=_y;} }O; st
Preface Validating data is a common task that occurs throughout all application layers, from the presentation to the persistence layer. Often the same validation logic is implemented in each layer which is time consuming and error-prone. To avoid dup
原文 History lives on in this distinguished Polish city Though it may be ancient. KraKow, Poland, is alive and well as it celebrates and commemorates its meaningful history. Looking up When scaning the skies of Krakow,most agree that Wawel Castle cast
转自:http://userpage.chemie.fu-berlin.de/diverse/doc/ISO_3166.htmlCountry A 2 A 3 Number ---------------------------------------------------------------------- AALAND ISLANDS AX ALA 248 AFGHANISTAN AF AFG 004 ALBANIA AL ALB 008 ALGERIA DZ DZA 012 AMERI
