Question

A programmer intended to compute (a AND b) OR c, and wrote the following code, which sometimes yields incorrect output. Why

Answer 1

A programmer intended to compute (a AND b) OR c, and wrote the following code, which sometimes yields incorrect output. The reason for this is because:

• AND and OR are logical operators that operate on Boolean expressions to return true or false results.
• However, | and & are bitwise operators that act on a given number's binary digits bit by bit and yield a new number after the operation.

Who is a computer programmer?

A computer programmer is a person who specializes in creating codes with which a computer is instructed to achieve a specific and expected output.

What are the other reasons for the inconsistent yield or output?

The program attempts to calculate (a AND b) OR c using the logical operators AND and OR, which will return either 1 (True) or 0 (False) depending on the inputs.

However, in the program, the programmer used the bitwise or(|) and bitwise and(&) operators: c | (a & b), which returns a new number depending on the values of a, b, and c.

As a result, it will produce the right outcome only when the logical AND - OR operation and bitwise and - or on inputs a, b, and c produce either 0 or 1. Otherwise, the outcome will be inaccurate.

As a result, the right response is that bitwise operators should be substituted by logical operators.

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