摘要:
Write a function to find the longest common prefix string amongst an array of strings. 找出,给出的一堆字符串的公共前缀。两个两个比较 阅读全文
posted @ 2017-07-17 20:09
Beserious
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摘要:
Given a roman numeral, convert it to an integer. Input is guaranteed to be within the range from 1 to 3999. 给出罗马数字 输出对应的阿拉伯数字。思路来自29的罗马数字 观看罗马数字构造规则(h 阅读全文
posted @ 2017-07-17 19:36
Beserious
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摘要:
Determine whether an integer is a palindrome. Do this without extra space. 就是判断 反转后的整数和反转之前的整数是否相等 阅读全文
posted @ 2017-07-17 16:55
Beserious
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摘要:
Reverse digits of an integer. Example1: x = 123, return 321Example2: x = -123, return -321 Note:The input is assumed to be a 32-bit signed integer. Yo 阅读全文
posted @ 2017-07-17 14:45
Beserious
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