Description:Count the number of prime numbers less than a non-negative number,nclick to show more hints.References:How Many Primes Are There?Sieve of ...
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其他好文 时间:
2015-04-30 12:05:00
阅读次数:
102
Description:
Count the number of prime numbers less than a non-negative number, n
click to show more hints.
Credits:
Special thanks to @mithmatt for adding this problem and creating all te...
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其他好文 时间:
2015-04-29 13:42:50
阅读次数:
123
Description:
Count the number of prime numbers less than a non-negative number, n
click to show more hints.
References:
How Many Primes Are There?
Sieve of Eratosthenes
Credits:
Speci...
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其他好文 时间:
2015-04-29 10:06:42
阅读次数:
134
题目:
Determine whether an integer is a palindrome. Do this without extra space.
Some hints:
Could negative integers be palindromes? (ie, -1)
If you are thinking of converting the integer to s...
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其他好文 时间:
2015-04-28 22:53:01
阅读次数:
177
Description:Count the number of prime numbers less than a non-negative number,nclick to show more hints.Credits:Special thanks to@mithmattfor adding t...
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编程语言 时间:
2015-04-28 22:41:35
阅读次数:
184
Description:Count the number of prime numbers less than a non-negative number,nclick to show more hints.References:How Many Primes Are There?Sieve of ...
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其他好文 时间:
2015-04-28 15:35:41
阅读次数:
144
问题描述:Determine whether an integer is a palindrome. Do this without extra space.Some hints:Could negative integers be palindromes? (ie, -1)If you are t...
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编程语言 时间:
2015-04-25 14:54:15
阅读次数:
167
Palindrome NumberDetermine whether an integer is a palindrome. Do this without extra space.Some hints:Could negative integers be palindromes? (ie, -1)...
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其他好文 时间:
2015-04-21 20:22:35
阅读次数:
130
题意:给一串密码(第一行),接着再给你很多行猜测,针对每行猜测,输出两个数字,分表代表:同一列上匹配的个数,不同列上匹配的个数。注:匹配指的是一次,一旦配对,不能再与其他配对。思路:每接受一行猜测就匹配,扫一遍就知道哪些是同列匹配的,统计出来,作为第一个输出的数字。扫的过程中将同列匹配的guess列...
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其他好文 时间:
2015-04-21 12:56:14
阅读次数:
90
HINT的基本概念在向大家详细介绍Oracle Hints之前,首先让大家了解下Oracle Hints是什么,然后全面介绍Oracle Hints,希望对大家有用。基于代价的优化器是很聪明的,在绝大多数情况下它会选择正确的优化器,减轻了DBA的负担。但有时它也聪明反被聪明误,选择了很差的执行计划,...
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其他好文 时间:
2015-04-19 14:24:20
阅读次数:
213