Add a.out to .gitignore.
Add Hello World
Add simple product
Put each statement on separate line.
Add incorrectly nested comments.
Rename folders to use chapter and exercise numbers rather than chapter, section and exercise number.
Add sum of 50-100 with while.
Add program printing 10..0.
Add program to print all numbers in given range.
Rewrite earlier while exercises using for loops.
Add common program errors.
Add program to print sum of numbers.
Add program to print number group counts.