python leetcode 405. Convert a Number to Hexadecimal
涉及到進位制和加減乘除 很多時候考察的是位運算
注意的是 要先把負數轉為正數
class Solution: def toHex(self, num): """ :type num: int :rtype: str """ sh='0123456789abcdef' res='' if num<0: num=2**32+num while num: res=sh[num&0xF]+res num>>=4 return res if res else '0'
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python leetcode 405. Convert a Number to Hexadecimal
涉及到進位制和加減乘除 很多時候考察的是位運算 注意的是 要先把負數轉為正數 class Solution: def toHex(self, num): """ :type num: int :rtype: str
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