Hey!

I am college student training for exam. Found one problem and I know you'll know what to use straight away. Here we go:

We got a file where the excel sheet is encrypted like this:

1;2;3;=A2

;;1;4;5

;=580*A;=D2+1

Formulas are just simple ones, max. two numbers and *, /, +, -.

Output should be: all formulas solved or message about cycle.

How would you represent the data? I guess it won't be <vector>. Would that be <map> or simple array of pointers on struct

`{bool solved; int number; string formula}`

?

Thanks for your opinion.