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What is the output of following C code?
#include <stdio.h>
#define MUL(x) (x * x) 
int main( )
{
int i=4;
int p,q;
p= MUL(i++);
q = MUL(++i);
printf("%d", p + q); 
return 0;
}
    Correct answer is '84'. Can you explain this answer?
    Verified Answer
    What is the output of following C code?#include <stdio.h>#define...
    In C, when preprocessor sees the #define directive, it goes through the entire program in search of the macro templates; wherever it finds one, it replaces the macro template with the appropriate macro expansion. In this program wherever the preprocessor finds the phrase MUL(x) it expands it into the statement (x * x).
    p = 4 x 5 = 20
    now i = 6
    q = 8 x 8 = 64
    p + q = 84
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    Most Upvoted Answer
    What is the output of following C code?#include <stdio.h>#define...
    Explanation:
    1. Macro Definition:
    - The code defines a macro function MUL(x) which computes the square of the input x using the formula (x * x).
    2. Main Function:
    - In the main function, the variable i is initialized to 4.
    - Two variables p and q are declared to store the result of the macro MUL function.
    3. Macro Expansion:
    - When p = MUL(i++); is expanded, it becomes p = (i++ * i++), which results in p = (4 * 5) = 20.
    - When q = MUL(++i); is expanded, it becomes q = (++i * ++i), which results in q = (6 * 7) = 42.
    4. Print Statement:
    - The printf statement prints the sum of p and q, which is 20 + 42 = 62.
    5. Final Output:
    - The output of the code is '62'.
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    What is the output of following C code?#include <stdio.h>#define MUL(x) (x * x)int main( ){int i=4;int p,q;p= MUL(i++);q = MUL(++i);printf("%d", p + q);return 0;}Correct answer is '84'. Can you explain this answer?
    Question Description
    What is the output of following C code?#include <stdio.h>#define MUL(x) (x * x)int main( ){int i=4;int p,q;p= MUL(i++);q = MUL(++i);printf("%d", p + q);return 0;}Correct answer is '84'. Can you explain this answer? for Computer Science Engineering (CSE) 2025 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about What is the output of following C code?#include <stdio.h>#define MUL(x) (x * x)int main( ){int i=4;int p,q;p= MUL(i++);q = MUL(++i);printf("%d", p + q);return 0;}Correct answer is '84'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is the output of following C code?#include <stdio.h>#define MUL(x) (x * x)int main( ){int i=4;int p,q;p= MUL(i++);q = MUL(++i);printf("%d", p + q);return 0;}Correct answer is '84'. Can you explain this answer?.
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