There are here some exercises I did to prepare my exam of Operational Research at University of Milan.
In PL folder you can find Linear-Programming exercises. In PLI folder you can find Integer-Programming exercises. In PNL folder you can find Nonlinear-Programming exercises.
Gusek code editor for PL and PLI. Mathprog language and glpsol solver.
AMPL Ide for PNL.
Disclaimer: All the texts are in Italian only.