01-复杂度2 Maximum Subsequence Sum (25 分)
Givenasequenceof K integers{ N1, N2,..., NK }.Acontinuoussubsequenceisdefinedtobe{ Ni, Ni+1,..., Nj...
setitimer()函数
定时器时间函数structitimerval：structitimerval*new_value，其定义如下：structitimerval{structtimevalit_interval;/*nextvalue*/structtimevalit_value;/*currentvalue*/};structtimev...
01-复杂度2 Maximum Subsequence Sum （25 分)
Givenasequenceof K integers{ N1, N2,..., NK }.Acontinuoussubsequenceisdefinedtobe{ Ni, Ni+1,..., Nj...
1059 Prime Factors（25 分）
Givenanypositiveinteger N,youaresupposedtofindallofitsprimefactors,andwritethemintheformat N = p1k1×p2k2×⋯&tim...
1007 Maximum Subsequence Sum (25)
GivenasequenceofKintegers{N~1~,N~2~,...,N~K~}.Acontinuoussubsequenceisdefinedtobe{N~i~,N~i+1~,...,N~j~}where1<=i<=j<=K.The MaximumSubsequence ...
1063. Set Similarity (25)
Giventwosetsofintegers,thesimilarityofthesetsisdefinedtobeNc/Nt*100%,whereNc isthenumberofdistinctcommonnumberssharedbythetwosets,andNt isthetotalnumb...
1015. Reversible Primes (20)
A reversibleprime inanynumbersystemisaprimewhose"reverse"inthatnumbersystemisalsoaprime.Forexampleinthedecimalsystem73isareversibleprimebecauseitsreve...
(fields.E130) DecimalFields must define a 'decimal_places' attribute.
DecimalField类型：固定精度的十进制数，一般用来存金额相关的数据。额外的参数包括DecimalField.max_digits（整个数字的长度）和DecimalField.decimal_places（小数点后面的有效位数）模型定义时，DecimalField类型字段如下定义：aaf_1kg_all=mode...
关于ImageField在apache服务器上ServerError的问题参考资料
http://my.oschina.net/zyzzy/blog/173262...
Django 模型中字段类型的ImageField
model_pic=models.ImageField(upload_to='pic_folder/',default='pic_folder/None/no-img.jpg') 参数upload_to是指定将图片上传到哪个文件夹。参数default是指定在没有上传图片的时指向的图片。...
datetime.datetime.now()时间格式转化是碰到的问题
importdatetimeprintdatetime.datetime.now()#2016-03-2817:16:00.812000a=‘2016-03-2817:16:00.812000’timeArray=time.strptime(a,'%Y-%m-%d%H:%M:%S.%f')##注...