Code Twisters Round 1 Demo

1. What is the format specifier for printing an integer in C?

• %d

• %c

• %f

• %s

2. Which operator is used to get the address of a variable?

• *

• &

• -

• @

3. Which of the following is a correct syntax to declare a pointer?

• *int p;

• int p*;

• int *p;

• int p;

4. Which function is used to read a string from standard input?

• scanf()

• fgets()

• getch()

• gets()

5. Which loop guarantees at least one execution of the loop body?

• for loop

• do-while loop

• while loop

• None of the Above

6. What will be the output of printf("%d", 5/2);?

• 2

• 2.5

• 3

• 0

7. What is the return type of the malloc() function?

• int

• char*

• void*

• float*

8. Which of the following are keywords in C?

• int, char, printf

• for , if , float

• scanf , while ,void

• double, extern , register

9. Which of the following functions are used to allocate memory dynamically?

• malloc() , free()

• scanf(),printf()

• calloc(),malloc()

• realloc() , free()

What will sizeof(char) return?

• 2

• 4

• 1

• 8