Bitwise OR, AND, and XOR with identical values in decimal and hex: compute and print all results. #include int main() { int i = 32, j = 0x20; int k, l, m; k = i | j; l = i & j; m = k ^ l; printf("%d, %d, %d, %d, %d ", i, j, k, l, m); return 0; }

C Programming Bitwise Operators Difficulty: Easy
Choose an option
  • A
    0, 0, 0, 0, 0
  • B
    0, 32, 32, 32, 32
  • C
    32, 32, 32, 32, 0
  • D
    32, 32, 32, 32, 32
  • E
    32, 32, 0, 32, 32

Answer

Correct Answer: 32, 32, 32, 32, 0

Explanation

Introduction / Context:This problem reinforces equivalence between decimal and hexadecimal literals and the behavior of bitwise OR, AND, and XOR when both operands have exactly the same bit set. Here, 32 and 0x20 are the same value.

Given Data / Assumptions:

  • i = 32 and j = 0x20; both represent 0010 0000 in binary.
  • k = i | j sets bits that are 1 in either operand.
  • l = i & j sets bits that are 1 in both operands.
  • m = k ^ l sets bits that differ between operands.

Concept / Approach:When the operands are identical, OR and AND both equal the same value, while XOR becomes zero because there are no differing bits. Printing the five integers demonstrates this symmetry clearly.

Step-by-Step Solution:Recognize i == j == 32.k = i | j = 32 | 32 = 32.l = i & j = 32 & 32 = 32.m = k ^ l = 32 ^ 32 = 0.printf prints: 32, 32, 32, 32, 0.

Verification / Alternative check:Change j to 0x10 (16) and re-run to see different outcomes, emphasizing how XOR becomes nonzero when bits differ.

Why Other Options Are Wrong:They imply mismatched values between decimal and hex, or misapply bitwise logic (e.g., XOR of equal values cannot be nonzero).

Common Pitfalls:Assuming hex implies a different numeric value; forgetting binary representations; mixing up meanings of OR vs XOR.

Final Answer:32, 32, 32, 32, 0

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