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Programming Challenges
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Hard
Minimum Network Connection Cost
Choose undirected links so that every vertex can reach every other vertex, with minimum total cost.
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Medium
Shortest Weighted Routes
Find the minimum total route cost from city 1 to each city.
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Hard
Strongly Connected Components
Count groups of nodes that can all reach each other.
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Medium
Can We Split Into Two Teams?
Decide whether people can be assigned to two teams so that each listed pair is on opposite teams.
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