IGDTUW 2025 — Computer PYQ

The correct answer is (a) 0.

Explanation

To evaluate this expression, we must follow the C language operator precedence rules. The expression is:

-x + j == x > n >= m

Step-by-step Evaluation:

1. Unary and Arithmetic Operators: Unary minus ($-$) has the highest precedence, followed by addition ($+$).

   • $-x=-7.5$

   • $-x+j=-7.5+(-1.0)=-8.5$

2. Relational Operators: The remaining operators are == (equality), > (greater than), and >= (greater than or equal to). Their precedence is:

   • > and >= have higher precedence than ==.

   • Relational operators are left-associative.

The expression effectively becomes:

-8.5 == ((7.5 > 1.0) >= 2.0)

3. Evaluating the inner comparisons:

   • (7.5 > 1.0) is true, which evaluates to 1.

   • (1 >= 2.0) is false, which evaluates to 0.

4. Final Comparison:

   • $-8.5==0$

Since $-8.5$ is not equal to $0$, the condition is false. In C, a false condition evaluates to 0.