Reverse Bits

一、题目要求

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).

二、代码实现

uint32_t reverseBits(uint32_t n) {
uint32_t i,high,low,tmp=0;
for(i=0;i<16;i++)
{
high=(n>>(31-i))&0x1;
low=(n>>i)&0x1;
//
if(low)
{
tmp=tmp|(1<<(31-i));
}
//
if(high)
tmp=tmp|(1<<i);
}

return tmp;
}