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Leetcode: Ugly Number
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 exam...
分类:其他好文   时间:2015-12-23 08:08:47    阅读次数:106
Leetcode: Ugly Number II
Write a program to find the n-th ugly number.Ugly numbers are positive numbers whose prime factors only include 2, 3, 5. For example, 1, 2, 3, 4, 5, 6...
分类:其他好文   时间:2015-12-23 07:05:06    阅读次数:179
313. Super Ugly Number
题目:Write a program to find the nthsuper ugly number.Super ugly numbers are positive numbers whose all prime factors are in the given prime listprimeso...
分类:其他好文   时间:2015-12-22 06:25:36    阅读次数:187
Ugly Number II
Write a program to find the n-th ugly number. Ugly numbers are positive numbers whose prime factors only include 2, 3, 5. For example, 1, 2, 3, 4, 5, ...
分类:其他好文   时间:2015-12-21 15:38:03    阅读次数:147
How many prime numbers(求素数个数)
How many prime numbersTime Limit: 3000/1000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 14684Accepted Submission(s)...
分类:其他好文   时间:2015-12-20 15:48:30    阅读次数:122
HDU 1016 Prime Ring Problem --- 经典DFS
思路:第一个数填1,以后每个数判断该数和前一个数想加是否为素数,是则填,然后标记,近一步递归求解。 然后记得回溯,继续判断下一个和前一个数之和为素数的数。/* HDU 1016 Prime Ring Problem --- 经典DFS */#include #include int n;bool p...
分类:其他好文   时间:2015-12-19 06:34:21    阅读次数:194
《C prime plus (第五版)》 ---第11章 字符串和字符串函数---2
11-3:字符串 输出 三个标准的函数:puts() fputs() printf() 1.puts()函数: #include#define DEF "I an a #define string ."int main(){ char str1[80] = "An array was i...
分类:其他好文   时间:2015-12-16 12:15:16    阅读次数:187
LeetCode "Super Ugly Number" !
A classic type of problem: multi-pointer marching algorithm. For each pointer of each prime, we need to remember where it is in the ugly sequence, so ...
分类:其他好文   时间:2015-12-16 09:25:56    阅读次数:207
Prime Ring Problem
Problem DescriptionA ring is compose of n circles as shown in diagram. Put natural number 1, 2, ..., n into each circle separately, and the sum of num...
分类:其他好文   时间:2015-12-15 21:08:11    阅读次数:246
SGU题目总结
SGU还是个不错的题库...但是貌似水题也挺多的..有些题想出解法但是不想写代码, 就写在这里吧...不排除是我想简单想错了, 假如哪位神犇哪天发现请告诉我..231.Prime Sum. Find all pairs of prime numbers (A, B) such that A<=B ....
分类:其他好文   时间:2015-12-15 14:22:04    阅读次数:131
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