Expert in c programming python

i have a short quick 4 task's that i want to do now , with a large experience in C, C++ and C# projects. I have a competitive temperament, who will not stop until the project is perfectly delivered.It is basically to rebuild a short code and reuse it,

I’d like some help with writing a c project that deals with pgm files. Copy them, convert them from ASCII to binary and vice versa.