Must-do problems: Testing Your Solutions

These are fifteen problems about finding bugs. Each statement says what the program should do. The starter holds a program that almost does it. Find the case that breaks it, trace it, and write a correct program.

1. 1.Average markEasy
2. 2.Orders above the limitEasy
3. 3.Largest valueEasy
4. 4.Last position of a valueEasy
5. 5.Count the wordsEasy
6. 6.Second largest distinct valueMedium
7. 7.Is the list sorted?Medium
8. 8.Remove duplicates, keep the firstMedium
9. 9.Rotate right by kMedium
10. 10.Balanced bracketsMedium
11. 11.Find each valueMedium
12. 12.Best stretch of marksHard
13. 13.Pairs with a given sumHard
14. 14.Longest run of equal valuesHard
15. 15.Merge booking timesHard