随笔分类 -  Numbers & Digits

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29. Divide Two Integers
摘要：Divide two integers without using multiplication, division and mod operator. If it is overflow, return 2147483647 Example Given dividend = 100 and div 阅读全文
posted @ 2016-07-13 22:39 北叶青藤 阅读(167) 评论(0) 推荐(0)
50. Pow(x, n)
摘要：Implement pow(x, n). Notice You don't need to care about the precision of your answer, it's acceptable if the expected answer and your answer 's diffe 阅读全文
posted @ 2016-07-13 10:43 北叶青藤 阅读(186) 评论(0) 推荐(0)
Happy Number
摘要：Write an algorithm to determine if a number is happy. A happy number is a number defined by the following process: Starting with any positive integer, 阅读全文
posted @ 2016-07-12 06:49 北叶青藤 阅读(433) 评论(0) 推荐(0)
69. Sqrt(x)
摘要：Implement int sqrt(int x). Compute and return the square root of x. Have you met this question in a real interview? Yes Example sqrt(3) = 1 sqrt(4) = 阅读全文
posted @ 2016-07-10 12:29 北叶青藤 阅读(203) 评论(0) 推荐(0)
Ugly Number | & || & |||
摘要：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,  阅读全文
posted @ 2016-07-06 04:12 北叶青藤 阅读(333) 评论(0) 推荐(0)
Digit Counts
摘要：Count the number of k's between 0 and n. k can be 0 - 9. Count the number of k's between 0 and n. k can be 0 - 9. Count the number of k's between 0 an 阅读全文
posted @ 2016-07-06 02:33 北叶青藤 阅读(406) 评论(0) 推荐(0)
Trailing Zeros
摘要：Write an algorithm which computes the number of trailing zeros in n factorial. Have you met this question in a real interview? Yes Write an algorithm 阅读全文
posted @ 2016-07-06 02:16 北叶青藤 阅读(179) 评论(0) 推荐(0)

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