SJIT ECE PRACTICE TEST HCL @ 13/3/24

What will be the output of the following code snippet?

#include <stdio.h>

int main()

{

int a = 3,

b = 5;

int t = a;

a = b;

b = t;

printf("%d %d", a, b);

return 0;

}

• 5 3

• 3 3

• 3 5

• 5 5

What is the output of the following code snippet?

#include <stdio.h>

int main()

{

int a[] = {1, 2, 3, 4};

int sum = 0;

for(int i = 0; i < 4; i++) { sum += a[i];

}

printf("%d", sum);

return 0;

}

• 1

• 4

• 10

• 20

What is the output of the following code snippet?

int main() 
{
	int sum = 2 + 4 / 2 + 6 * 2;
	printf("%d", sum);
	return 0;
}

• 2

• 15

• 16

• 18

What will be the output of the following code snippet?

#include <stdio.h>
void solve() {
    int a[] = {1, 2, 3, 4, 5};
    int sum = 0;
    for(int i = 0; i < 5; i++) {
        if(i % 2 == 0) {
            sum += *(a + i);
        }
        else {
            sum -= *(a + i);
        }
    }
    printf("%d", sum);
}
int main() {
	solve();
	return 0;
}

• 2

• 15

• 3

• syntax error

What will be the output of the following code snippet?

#include <stdio.h>
void solve() {
    int first = 10, second = 20;
    int third = first + second;
    {
        int third = second - first;
        printf("%d ", third);
    }
    printf("%d", third);
}
int main() {
	solve();
	return 0;
}

• 10 30

• 30 10

• 10 20

• 20 10

What will be the output of the following code snippet?

#include <stdio.h>
void solve() {
    int a = 3;
    int res = a++ + ++a + a++ + ++a;
    printf("%d", res);
}
int main() {
	solve();
	return 0;
}

• 12

• 20

• 24

• 18

What will be the value of x in the following code snippet?

#include <stdio.h>
void solve() {
    int x = printf("Hello");
    printf(" %d", x);
}
int main() {
	solve();
	return 0;
}

• 10

• 5

• 1

• 0

What will be the output of the following code snippet?

#include <stdio.h>
void swap(int *a, int *b) {
    int t = *a;
    *a = *b;
    *b = t;
}
void solve() {
    int a = 3, b = 5;
    swap(&a, &b);
    printf("%d %d", a, b);
}
int main() {
	solve();
	return 0;
}

• 5 3

• 3 5

• 3 3

• 5 5

What will be the output of the following code snippet?

#include <stdio.h>
#define VAL 3 * (2 + 6)
void solve() {
    int a = 10 + VAL;
    printf("%d", a);
}
int main() {
	solve();
	return 0;
}

• 34

• 104

• 10

• 24

What will be the output of the following code snippet?

#include <stdio.h>
void solve() {
    printf("%d %d", (023), (23));
}
int main() {
    solve();
	return 0;
}

• 19 23

• 23 19

• 23 23

• 10 10