Start integer sum exercise
Working integer sum exercise
Implemented some suggestions
Improved final hint
Add case-insensitive flag to regex answer type
Create implicit_differentiation.html
Update exercises/implicit_differentiation.html
Update exercises/implicit_differentiation.html
Adding *.py to .gitignore
Trying to return .gitignore to the way it was
New hints for solve-older-1 problems
New hints for solve-younger-1
New hints for solve-older-2 problems
New hints for level 3 problems
Slightly changed 4 and 5 to match style of previous problems
Added colors to solve-older-1 problems
changed colors
Added colors through solve-younger-2
Added color through solve-younger-3 and reformatted the previous ones to give more space to equations
Made the second to last hin more uniform