B - Building Fire Stations Time Limit:5000MS Memory Limit:131072KB 64bit IO Format:%lld & %llu Submit Status Practice ZOJ 3820 Appoint description: System Crawler (2015-08-15) Description Marjar University is a beautiful and peaceful place.…
时间限制:1000MS 内存限制:65535K提交次数:0 通过次数:0 题型: 编程题 语言: G++;GCC Description You are given a M*M cloth with some holes on it. Your task is to find a biggest square cloth from it. The following is an example(M=5) 输入格式 The first line contains the one intege…
首先看下面的代码: # coding: utf-8 class Test(object): pass print Test.__class__ # type print Test.__base__ # object t = Test() print t.__class__ # Test print t.__class__.__class__ # type print Test.__class__.__class__.__class__ # type a = type('Foo', (), {})…
class.new 新建class.find 查询class.destroy 删除 变量查询a="hahaha"Product.find(:all,:conditions=>["title like ?","%#{a}%"])Product.find(:all,:conditions=>["title like :title",:title=>"%#{a}%"])Product.find(…