Avatto > UGC NET COMPUTER SCIENCE > PRACTICE QUESTIONS > Programming Languages and Computer Graphics > Programming in C > Find the Output

Programming in C MCQ - Find the Output

16 Find the output of the following C code (assume #include and that the code is inside int main(void)):

int x = 0, y = 5;

if (x != 0 && ++y > 5)
    printf("YES");

printf("%d", y);

Because x != 0 is false, logical AND short-circuits and ++y is not evaluated. The final printf prints 5.

17 Find the output of the following C code (assume #include and that the code is inside int main(void)):

int a = 1, b = 0, c = 0;

if (a || b && c)
    printf("TRUE");
else
    printf("FALSE");

&& has higher precedence than ||, so the condition groups as a || (b && c). Since a is nonzero, TRUE is printed.

18 Find the output of the following C code (assume #include and that the code is inside int main(void)):

int x = 3;

if (x++ > 3)
    printf("A");
else if (++x > 4)
    printf("B");
else
    printf("C");

printf("%d", x);

x++ compares the old value 3 with 3, which is false, then makes x equal to 4. ++x next makes x equal to 5 before comparing; 5 > 4 is true, so B5 is printed.

19 Find the output of the following C code (assume #include and that the code is inside int main(void)):

int a = 8, b = 5;

if ((a > b) ? (a - b) : (b - a))
    printf("YES");
else
    printf("NO");

a > b is true, so the conditional operator yields a - b = 3. Since 3 is nonzero, the if branch prints YES.

20 Find the output of the following C code (assume #include and that the code is inside int main(void)):

int a = 12, b = 8, c = 4;

if (a > b) {
    if (b % c == 0)
        a = a - b;
    else
        a = a + b;
}

if (a > c)
    printf("X");
else if (a == c)
    printf("Y");
else
    printf("Z");

12 > 8 is true and 8 % 4 is zero, so a becomes 12 - 8 = 4. The final ladder finds a == c and prints Y.

Your Progress

Start Practising!

You've answered 0 of 50 questions in this topic.

Practice Spotlight

Build momentum in Find the Output

Start with a short question set, review every explanation, and revisit difficult questions before moving ahead.

Day 4 / 10

Global Spotlight

Build Your First Streak

Complete one short Find the Output session today, then return tomorrow. Consistency matters more than a long first session.

Day 7 / 10

Question Spotlight

Question:

Find the output of the following C code (assume #include <stdio.h> and that the code is inside int main(void)):int i, j, sum = 0; for (i = 1;…

A. 24
B. 30
C. 32
D. 40

Correct answer: C

Explanation:

Only odd i+j pairs contribute: 6 for i=1, 8 for i=2, and 18 for i=3, totaling 32.

Click to view the complete question details

Day 4 / 10 Open this question

Question

Find the output of the following C code (assume #include <stdio.h> and that the code is inside int main(void)):

int i, j, sum = 0;
for (i = 1; i <= 3; i++) {
    for (j = 1; j <= 4; j++) {
        if ((i + j) % 2 == 0)
            continue;
        sum += i * j;
    }
}
printf("%d", sum);

Community Insight

Based on 300 saved attempts

Most Attempted TopicConstants, Variables and Data Types
Most Challenging TopicArays
Average Accuracy94%