(please use the solutions only if you really do not know where to go)
All materials for this lecture may be freely distributed, re-used and modified provided that you share your derivative work on the same condition and attribute the author of the original (Bartosz Telenczuk, bartosz.telenczuk(at)gmail.com) in accordance with the Creative-Commons Attribution-ShareAlike license.
If you re-use the materials, I will be very grateful for the copy of your revised work.