EDIT: This is to be done in C and no classes please. It is for aprogramming language translation course
You are working on a larger project. The leader already has somespecs for what is needed and is giving to you only what you need todo, other people work on other parts.
You are given to implement functions f1(), f2(), f3() andprovide one global variable g1, all available to others. You arealso given to provide macros M1 and M2, also available toothers.
In implementing f1() and f2() you decided they two mustcommunicate through a helper global variable g12 (it should not beexposed to others)
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