CareerCup

// Shift right 3 spaces to get 4th bit into 1st least significant bit
// Bitwise & with 0001 to get result.

int bitAtPos(int num) {
return (1 & (num >> 3));
}

(zoomba)x = str(20,2)
10100 // String
(zoomba)x[-4]
0 // Character
(zoomba)

That is one way. Another is trivial using bit manipulation.

int leastSignificantBitAtPosition(int num)
{
return (num & (1 << 4)) // As it was specified as 4th LSB bit
}

int leastSignificantBit(int num)
{
return (num & (1 << 4)) // needed 4 th LSB bit
}

int bitAtPosition(int num)
{
return (num & (1 << 4)); //as needed 4 th LSB
}

Wrong

For 4th least significant use num<<3

// Java Implementation for kth LSB

void function(int n, int k)  {
		System.out.println((n&(1<<(k-1)));
	}

(n/8)%2

int bitAtPosition(int num)
{
	mask_bit = 1 << 4; //required 4th LSB
	if (num & bit)
		return 1;
	else 
		return 0;	
}