diff options
Diffstat (limited to 'reverse_bits.py')
-rw-r--r-- | reverse_bits.py | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/reverse_bits.py b/reverse_bits.py new file mode 100644 index 0000000..b72fefa --- /dev/null +++ b/reverse_bits.py @@ -0,0 +1,24 @@ +# 190. Reverse Bits + +""" +reverse the bitof a given 32 bits unsigned integer. +""" + + +class Solution: + # @param n, an integer + # @return an integer + def reverseBits(self, n): + ans = 0 + for _ in range(32): + ans = (ans << 1) + (n & 1) + n >>= 1 + return ans + + +if __name__ == "__main__": + obj = Solution() + r1 = obj.reverseBits(0b00000010100101000001111010011100) + r2 = obj.reverseBits(0b11111111111111111111111111111101) + print(r1, "(", bin(r1), ")") + print(r2, "(", bin(r2), ")") |