摘要: Write a function to find the longest common prefix string amongst an array of strings. If there is no common prefix, return an empty string "". Exampl 阅读全文
posted @ 2018-12-19 04:32 Schwifty 阅读(128) 评论(0) 推荐(0)
摘要: Roman numerals are represented by seven different symbols: I, V, X, L, C, D and M. For example, two is written as II in Roman numeral, just two one's 阅读全文
posted @ 2018-12-19 02:02 Schwifty 阅读(169) 评论(0) 推荐(0)