WBJECA 2025 — Computer PYQ

Correct Option: (C) 0 to 65535

Explanation

In C programming, an unsigned int uses all available bits to represent positive values, effectively doubling the positive range compared to a signed integer.

• Size Consideration: On most 16-bit systems (which this question assumes based on the options), an int occupies 2 bytes (16 bits).

• Calculation: The number of values that can be represented by $n$ bits is $2^n$. For 16 bits:

  $$Total\_Values=2^{16}=65,536$$

• Range Definition: Since unsigned int starts from 0, the range is from $0$ to $2^n-1$:

  $$Range=0\text{ to }(65536-1)=0\text{ to }65535$$