Bitwise AND, OR, XOR in C - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to perform a bitwise AND operation between a and b.

C

int result = a [1] b;

Drag options to blanks, or click blank then click option'

A^

B|

C&

D&&

Attempts:

3 left

💡 Hint

Common Mistakes

Using logical AND (&&) instead of bitwise AND (&).

Using bitwise OR (|) instead of AND.

The bitwise AND operator is &. It compares each bit of two numbers and returns 1 only if both bits are 1.

2fill in blank

medium

Complete the code to perform a bitwise OR operation between x and y.

C

int combined = x [1] y;

Drag options to blanks, or click blank then click option'

A^

B|

C&

D||

Attempts:

3 left

💡 Hint

Common Mistakes

Using logical OR (||) instead of bitwise OR.

Using bitwise AND (&) instead of OR.

The bitwise OR operator is |. It compares each bit of two numbers and returns 1 if at least one bit is 1.

3fill in blank

hard

Fix the error in the code to perform a bitwise XOR operation between m and n.

C

int diff = m [1] n;

Drag options to blanks, or click blank then click option'

A^

B&

C|

D&&

Attempts:

3 left

💡 Hint

Common Mistakes

Using logical AND (&&) or OR (||) instead of bitwise XOR.

Using bitwise AND (&) or OR (|) instead of XOR.

The bitwise XOR operator is ^. It returns 1 only when the bits are different.

4fill in blank

hard

Fill both blanks to create a mask that keeps only the lower 4 bits of value.

C

int mask = (1 [1] 4) [2] 1;

Drag options to blanks, or click blank then click option'

A<<

B>>

C-

D+

Attempts:

3 left

💡 Hint

Common Mistakes

Using right shift (>>) instead of left shift (<<).

Adding 1 instead of subtracting 1.

Shift 1 left by 4 bits to get 16, then subtract 1 to get 15 (binary 1111), which masks the lower 4 bits.

5fill in blank

hard

Fill all three blanks to toggle the 3rd bit of num using XOR.

C

int toggle = num [1] (1 [2] 2 [3] 0);

Drag options to blanks, or click blank then click option'

A&

B^

C<<

D|

Attempts:

3 left

💡 Hint

Common Mistakes

Using AND (&) instead of XOR (^).

Using addition (+) instead of OR (|).

Use XOR (^) to toggle bits. Shift 1 left by 2 to get the 3rd bit mask, then OR (|) to form the mask.