Getting Started with Competitive Programming

Module Z. Extras

1. The King of the North on Kattis. A natural minimum cut problem.
2. Component Placement — UVa 11765. Think about how you will model this as a flow network — perhaps the source and the sink can be indicators for top/bottom placements and you could have nodes for the components... how will you capture the cost of putting two components at opposite ends?
3. Winger Trial — UVa 11757. A mincut problem; creating the flow network involves some geometric observations.
4. Red-Blue Graph on Codeforces. This is a flow variant, where you might want to impose demands (a minimum flow) through certain edges. You might have go beyond the algorithms we've covered to solve this one.

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