摘要：
7. Reverse Integer Reverse digits of an integer. Example1: x = 123, return 321Example2: x = -123, return -321 此题题意为反转一个整数个各个数字，比如123，翻转后为321 java代码: 但 阅读全文
摘要：
13. Roman to Integer Given a roman numeral, convert it to an integer. Input is guaranteed to be within the range from 1 to 3999. 给定一个罗马数字s，( I<=s<=MMM 阅读全文
摘要：
Excel Sheet Column Number Related to question Excel Sheet Column Title Given a column title as appear in an Excel sheet, return its corresponding colu 阅读全文
摘要：
Fizz Buzz Write a program that outputs the string representation of numbers from 1 to n. But for multiples of three it should output “Fizz” instead of 阅读全文