How much harder is COMP3821 (Ext Algorithms&Prog Techniques) than COMP3121 (Algorithms & Programming Tech)? They are annoyingly running in different trimesters, which means I can't drop down if 3821 turns out to be too challenging. How much greater is the workload in COMP3821? Are the extension topics worth it? Would you recommend a student with a 70 WAM take it over 3231? Thanks