leetCode 12. Integer to Roman | 字符串 | Medium

12. Integer to Roman Given an integer, convert it to a roman numeral. Input is guaranteed to be within the range from 1 to 3999. 题目大意: 将一个给定的阿拉伯数字转换成罗...

leetCode 13. Roman to Integer 字符串

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. 补充:罗马数字 罗马数字共有七个,即I(1...

leetCode 273. Integer to English Words 字符串 | Hard

273. Integer to English Words Convert a non-negative integer to its english words representation. Given input is guaranteed to be less than 231 -...

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