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https://leetcode.com/problems/reverse-bits/
Reverse bits of a given 32 bits unsigned integer.
For example, given input 43261596 (represented in binary as 00000010100101000001111010011100), return 964176192 (represented in binary as 00111001011110000010100101000000).
class Solution(object):
def reverseBits(self, n):
j = 0
s = ‘‘
ans = 0
while n > 0:
s = s + str(n & 1)
n >>= 1
j += 1
i = j;
while i < 32:
s += ‘0‘
i += 1
i -= 1
j = 32
while ~i:
ans += int(s[i]) * (1 << (j - i - 1))
i -= 1
return ans
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原文地址：http://www.cnblogs.com/GadyPu/p/5028216.html
