- More work with vectors. Can we detect a right angle?
- Coloring maps: when two colors are enough?
- Getting robots out of the maze, blindly
- Choosing socks again. Walking in square grid?
homework
1. How many colors one needs to color this map?
2. On the left is shown what would happen to the green strip under the turn by 90 degrees around the red point. Draw what would happen if you turn by 90 degrees the yellow and the violet shapes?
3. One big bag and one small bag can hold 5 pumpkins, while two big bags and three small bags can hold 12 pumpkins. How many pumpkins each bag can hold?
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