Mastering Loops in C++

What is the basic syntax of a for loop in C++?

• for(condition; initialization; increment/decrement) { // code }

• for(initialization; increment/decrement; condition) { // code }

• for(initialization: condition: increment/decrement) { // code }

• for(initialization; condition; increment/decrement) { // code to be executed }

Which of the following correctly describes a while loop?

• A while loop executes only once regardless of the condition.

• A while loop executes as long as a condition is true.

• A while loop runs a fixed number of times.

• A while loop is used to define a function.

What is the output of the following code: for(int i=0; i<5; i++) { cout << i; }?

• 01234

• 56789

• 12345

• 0123

How do you break out of a loop in C++?

• Use the 'return' statement.

• Use the 'exit' function.

• Use the 'continue' statement.

• Use the 'break' statement.

What is a nested loop?

• A loop that only executes once.

• A nested loop is a loop within another loop.

• A loop that skips all iterations.

• A loop that runs indefinitely.

Which statement can be used to skip the current iteration of a loop?

• continue

• exit

• return

• break

What is an infinite loop?

• A loop that terminates after a specific condition is met.

• A loop that executes only once.

• A loop that runs for a fixed number of iterations.

• An infinite loop is a loop that never ends.

Which of the following can cause an infinite loop?

• A loop that executes only once.

• A loop that is nested within another loop.

• A loop with a correct termination condition.

• A loop with a missing or incorrect termination condition.

How can you optimize loop performance in C++?

• Relying solely on standard libraries without optimization

• Using global variables extensively

• Optimize loop performance by minimizing iterations, using efficient data structures, avoiding unnecessary calculations, using iterators, unrolling loops, and leveraging compiler optimizations.

• Implementing recursive functions in loops

What is the purpose of the continue statement in loops?

• The continue statement restarts the loop from the beginning.

• The purpose of the continue statement in loops is to skip the current iteration and proceed to the next one.

• The continue statement pauses the loop for a specified time.

• The continue statement ends the loop immediately.