As an emergency rescue team leader of a city, you are given a special map of your country. The map shows several scattered cities connected by some roads. Amount of rescue teams in each city and the l...
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其他好文 时间：
2015-02-23 14:19:34
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165
The highest building in our city has only one elevator. A request list is made up with N positive numbers. The numbers denote at which floors the elev...
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其他好文 时间：
2015-02-19 12:55:04
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139
Problem Description
Suppose 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...
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Web程序 时间：
2015-02-16 13:04:59
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188
With highways available, driving a car from Hangzhou to any other city is easy. But since the tank capacity of a car is limited, we have to find gas s...
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其他好文 时间：
2015-02-15 16:27:05
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168
代码示例：WITH domain AS(SELECT ROW_NUMBER() OVER(ORDER BY ID DESC) ids,* FROM dbo.DomainInfo)SELECT * FROM domain WHERE ids BETWEEN 1 AND 20 ORDER BY City...
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数据库 时间：
2015-02-15 15:03:32
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204
时间限制200 ms内存限制65536 kB代码长度限制16000 B判题程序Standard作者CHEN, YueIndeed there are many different tourist routes from our city to Rome. You are supposed to fi...
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其他好文 时间：
2015-02-14 23:45:01
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384
时间限制400 ms内存限制65536 kB代码长度限制16000 B判题程序Standard作者CHEN, YueThere is a public bike service in Hangzhou City which provides great convenience to the tour...
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其他好文 时间：
2015-02-14 14:54:44
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157
mysql数据库sql语句调优 、
索引设计原则：
索引列一般为where子句中的列或连接字句中的列
尽量不对基数小的列做索引，如性别列
尽可能使用短索引：如果对字符列索引尽量指定最小长度。
（short Keys are better,Integer best）
create index cityname on city(city(10));
复合索引前缀特性，索引的顺序很重要。
...
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数据库 时间：
2015-02-14 11:06:31
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195
时间限制400 ms内存限制65536 kB代码长度限制16000 B判题程序Standard作者CHEN, YueAs an emergency rescue team leader of a city, you are given a special map of your country. T...
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其他好文 时间：
2015-02-13 23:40:43
阅读次数：
211
题目1437：To Fill or Not to Fill时间限制：1 秒内存限制：128 兆特殊判题：否提交：1488解决：345题目描述：With highways available, driving a car from Hangzhou to any other city is easy....
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其他好文 时间：
2015-02-13 19:50:13
阅读次数：
183
