C Programming Challenge

What is the syntax to declare a variable in C?

• float value;

• string name;

• bool flag;

• int num;

How do you define a function in C?

• return_type(parameters) { // function body } function_name

• return_type function_name(parameters) { // function body }

• function_name(parameters) { // function body } return_type

• function_name(parameters) { // function body }

What is the purpose of 'if' statement in C?

• It is used to declare variables

• It is used to print output to the console

• It is used to control the flow of the program based on certain conditions.

• It is used to define functions

What is the difference between 'while' and 'do-while' loop in C?

• The 'while' loop checks the condition before executing the statements, while the 'do-while' loop executes the statements first and then checks the condition.

• The 'while' loop can only be used for definite iteration, while the 'do-while' loop can be used for both definite and indefinite iteration.

• The 'while' loop always executes at least once, while the 'do-while' loop may not execute at all.

• The 'while' loop is more efficient than the 'do-while' loop in terms of performance.

How do you access elements in an array in C?

• arr.index

• arr{index}

• arr[index]

• arr(index)

What is the output of 'printf("%d", 5 > 2)' in C?

• 1

• 0

• 2

• 3

Explain the concept of pass by value and pass by reference in C functions.

• Pass by value involves passing a reference to the parameter.

• Pass by reference involves passing a copy of the parameter.

• Pass by value involves passing a copy of the parameter, while pass by reference involves passing the memory address of the parameter.

• Pass by value involves passing the memory address of the parameter.

When would you use a 'switch' statement instead of 'if-else' in C?

• When you want to execute code based on a range of values

• When you want to improve code readability

• When you have multiple conditions to check against a single variable.

• When you need to handle exceptions

How do you initialize a 2D array in C?

• int arr[2][3] = {1, 2, 3, 4, 5, 6};

• int arr[2][3] = {{1, 2, 3}, {4, 5, 6}};

• int arr[][] = {{1, 2, 3}, {4, 5, 6}};

• int arr[2][3] = {{1, 2, 3}, {4, 5, 6}}

What is the role of 'break' statement in loops in C?

• The 'break' statement in loops is used to reverse the loop direction

• The 'break' statement in loops is used to skip the next iteration of the loop

• The 'break' statement in loops is used to immediately terminate the loop and transfer control to the statement following the loop.

• The 'break' statement in loops is used to execute the loop indefinitely