Sparse matrix data structue

Hello everyone! I'm having a data structure course assignment to be done, it's about building a sparse matrix data structure. I want it to be done quickly and properly (I want to get its full score) , in return of your good work, I will pay you on time and will keep working with you in the future. *** Bid for this project only if you are expert enough, I will check the code you write. *** I want the project to be done in less than 40 hours.