C- Operators

1. #include <stdio.h>

2. void main()

3. {

4. int a = 3;

5. int b = ++a ;

6. printf("Value of b is %d", b);

7. }

• 3

• 4

• error

• undefined

What is the precedence of arithmetic operators (from highest to lowest)?

• a) %, , /, +, –

• b) %, +, /, , –

• c) +, -, %, , /

• d) %, +, -, , /

Which of the following data type will throw an error on modulus operation(%)?

• float

• int

• short

What will be the output of the following C code?

1. #include <stdio.h>

2. int main()

3. {

4. int a = 10, b = 5, c = 5;

5. int d;

6. d = a == (b + c);

7. printf("%d", d);

8. }

• Error

• 1

• 10

• 0

What will be the output of the following C code?

1. #include <stdio.h>

2. void main()

3. {

4. int x = 1, y = 0, z = 5;

5. int a = x && y || z++;

6. printf("%d", z);

7. }

• a) 6
  

• b) 5
  

• c) 0
  

• d) Varies

What will be the final value of d in the following C code?

1. #include <stdio.h>

2. int main()

3. {

4. int a = 10, b = 5, c = 5;

5. int d;

6. d = b + c == a;

7. printf("%d", d);

8. }

• a) Syntax error
  

• b) 1
  

• c) 5
  

• d) 10

What will be the output of the following C code?

1. #include <stdio.h>

2. void main()

3. {

4. int k = 8;

5. int x = 0 == 1 && k++;

6. printf("%d%d\n", x, k);

7. }

• a) 0 9
  

• b) 0 8
  

• c) 1 8
  

• d) 1 9

What is the output of the following C code?

1. #include <stdio.h>

2. void main()

3. {

4. int x = 5, y = 10;

5. int z = x++ + ++y;

6. printf("%d", z);

7. }

• a) 15

• b) 16

• c) 20

• d) 21

What will be the value of x after the following C code is executed?

1. #include <stdio.h>

2. void main()

3. {

4. int x = 5;

5. x += 3 * 2;

6. printf("%d", x);

7. }

• a) 11

• b) 12

• c) 13

• d) 14

What is the output of the following C code?

1. #include <stdio.h>

2. void main()

3. {

4. int x = 5, y = 10;

5. int z = x-- - --y;

6. printf("%d", z);

7. }

• a) -5

• b) -4

• c) -6

• d) -7