1. Intro to Computer Science Loops
Dr. Olivera Grujic
USC

2. Loops?

3. Loops?

4. Computer Science Loop
Control flow statement for specifying iteration, which allows code to be executed repeatedly.

5. While Loop in C++

6. While Loop in C++

7. While Loop in C++
Initialization
Condition
Update

8. Problem with While Pattern
Hard to see all you need to know how the loop progresses
Easy to be so engrossed in writing the body of the loop that you forget to increment

9. For Loop in C++

10. For Loop in C++
Condition
Update
Initialization

11. You Don’t Have to Count Upward!

12. You Don’t Have to Update by 1!

13. DoWhile Loop

14. DoWhile Loop
Initialization
Update
Condition

15. What Does This Code Print?

16. Let’s Rewrite Outer Loop to DoWhile

17. Let’s Rewrite Outer Loop to DoWhile

18. Code Examples

19. Loop Through Strings

20. Verify Phone Number Has 10 Digits

21. Calculates x to the power of n

22. Implements “hotPotato”
Function takes 2 strings
Returns false if both strings are empty
If either or both strings are non-empty, swaps the values of strings