The tasks for week 3 are as follows:
Week problem: CXV -> 11517 Exact Change
Weekend problem: CIII -> 10337 Flight Planner
Suggested bonus: CIX -> 10943 How do you add?
You must submit your solutions on http://uva.onlinejudge.org/
You can browse to these problems from the online judge website by clicking on Browse Problems, Contest Volumes, and then selecting the contest volume as indicated above.