Count the number of prime numbers less than a non-negative number, n.Algorithm: The sieve of Eratosthenes,Referring to Summary: Primes0 and 1 are not ...
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其他好文 时间:
2015-12-15 06:27:06
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185
Write a program to check whether a given number is an ugly number.
Ugly numbers are positive numbers whose prime factors only include 2, 3, 5. For example, 6,
8 are ugly while 14 is not ugly sinc...
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其他好文 时间:
2015-12-13 15:37:01
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134
Write a program to find the nth super ugly number.Super ugly numbers are positive numbers whose all prime factors are in the given prime list primes o...
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其他好文 时间:
2015-12-12 16:49:24
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290
Ugly numbers are positive numbers whose prime factors only include2, 3, 5. For example,6, 8are ugly while14is not ugly since it includes another prime...
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其他好文 时间:
2015-12-10 16:37:52
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151
题目描述:A ring is compose of n circles as shown in diagram. Put natural number 1, 2, ..., n into each circle separately, and the sum of numbers in two ad...
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其他好文 时间:
2015-12-09 18:58:42
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224
Sum of Consecutive Prime NumbersTime Limit: 1000MSMemory Limit: 65536KTotal Submissions: 21613Accepted: 11837DescriptionSome positive integers can b.....
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其他好文 时间:
2015-12-08 09:57:00
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150
ZYB's PrimeTime Limit: 20 SecMemory Limit: 256 MB题目连接http://acm.hdu.edu.cn/showproblem.php?pid=5594DescriptionAfter getting 600 scores in NOIP,ZYB(ZJ?...
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其他好文 时间:
2015-12-06 14:35:00
阅读次数:
266
题目:http://acm.hdu.edu.cn/showproblem.php?pid=5594完全不会啊TAT。。其实官方题解已经说的很清楚了。。#include #include #include #include #include #include #include #define rep(...
Happy 2006Time Limit:3000MSMemory Limit:65536KTotal Submissions:5957Accepted:1833DescriptionTwo positive integers are said to be relatively prime to e...
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其他好文 时间:
2015-12-05 15:48:41
阅读次数:
122
题目:Write a program to find then-th ugly number.Ugly numbers are positive numbers whose prime factors only include2, 3, 5. For example,1, 2, 3, 4, 5, 6...
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其他好文 时间:
2015-12-05 07:12:25
阅读次数:
179