描述
Given an integer, return its base 7 string representation.
Example 1:
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| Input: 100
Output: "202"
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Example 2:
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| Input: 100
Output: "202"
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Note : The input will be in range of [-1e7, 1e7].
分析
类似的问题做过很多吧。
解决方案1(Python)
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| class Solution(object):
def convertToBase7(self, num):
"""
:type num: int
:rtype: str
"""
if num < 0:
return '-' + self.convertToBase7(-num)
if num < 7:
return str(num)
return self.convertToBase7(num/7) + str(num%7)
|
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