Week 3 - Loops (DCS1101)

Open Ended

If a game gives you 3 lives, what should happen when lives reach 0?

Open Ended

Can a program make decisions forever?

Multiple Choice

Which loop is most likely to cause an infinite loop?

• for

• while

• do-while

• Any loop without update

Multiple Choice

What is the output?

int x = 1;

while (x <= 3) {

cout << x << " ";

x++;

}

• 1 2 3
• 0 1 2
• 2 3 4
• 1 2

Multiple Choice

Which loop is better when number of repetitions is unknown?

• for loop
• while loop
• do-while loop
• foreach loop

Draw

Draw a flowchart for a loop that prints numbers 1 to 5.

Open Ended

Write a countdown from 5 to 1.

Multiple Choice

Find the error of this code
int x = 1;

while (x <= 5) {

cout << x;

}

• The code will result in an infinite loop.
• The loop will execute only once.
• The variable x is not initialized properly.
• The code will compile but not run.

Open Ended

What is the error for this loop?

for (int i = 1; i <= 5; i--) {

cout << i;

}