Assignment 13 continues with some of the same code as Homework 11. Copy your ibufPrint, ibufAdd, ibufAddArray, ibufIndex, and the ibutRemove functions. Rename them with the iset prefix, and change the type of the first agrument from IntegerBuffer to IntegerSet. You will make small changes to isetAdd code, but the others should work untouched.
Assignment 14 builds on Assignment 13 with two new functions: a new version of isetAdd and isetIndexFast. You should keep all of the other functions from Assignment 13, but remove isetRemoveFast().