摘要:
The string"PAYPALISHIRING"is written in a zigzag pattern on a given number of rows like this: (you may want to display this pattern in a fixed font fo... 阅读全文
摘要:
Given a roman numeral, convert it to an integer.Input is guaranteed to be within the range from 1 to 3999.Subscribeto see which companies asked this q... 阅读全文