27 lines
284 B
Python
27 lines
284 B
Python
|
|
|
|
|
|
def reverseBits(str):
|
|
|
|
n = int(str)
|
|
|
|
rev = 0
|
|
|
|
# tranverse bits from right to left
|
|
while n>0:
|
|
|
|
rev = rev << 1
|
|
|
|
# if current bit is 1
|
|
if (n&1==1):
|
|
rev = rev ^ 1
|
|
|
|
n = n >> 1
|
|
|
|
return rev
|
|
|
|
|
|
print reverseBits("4567")
|
|
|
|
|