DS_A1 batch viva1 &2

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

• 3,5

• 3,3

• 5,5

How is an array initialized in C language?

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

int a = {1, 2, 3};

int a[] = new int[3]

int a(3) = [1, 2, 3];

• int a[3] = {1, 2, 3};
• int a = {1, 2, 3};
• int a[] = new int[3]
• int a(3) = [1, 2, 3];

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

• 20

• 10

How are String represented in memory in C?

• An array of characters.

• The object of some class.

• Same as other primitive data types.

• LinkedList of characters.

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

Assuming int is of 4bytes, what is the size of int arr[15];?

• 60

• 30

• 15

• 4

Which of the following statements should be used to obtain a remainder after dividing 3.14 by 2.1 ?

• rem = fmod(3.14, 2.1);

• rem = modf(3.14, 2.1);

• Remainder cannot be obtain in floating point division.

• 
  rem = 3.14 % 2.1;

what is the outpuWhich of the following is the correct order of evaluation for the below expression?
z = x + y * z / 4 % 2 - 1t of the following code snippet

• 
  * / % + - =

• = * / % + -

• / * % - + =

• * % / - + =