Graph Theory Basics Questions

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Graph Handshaking Lemma

Easy
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Given degrees of all vertices, print YES if sum of degrees is even....
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Edges From Degree Sum

Easy
2 views 25 Jan 2026
Given sum of degrees S, compute number of edges E....
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Tree Edges

Easy
3 views 25 Jan 2026
Given number of nodes n in a tree, print number of edges....
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Bipartite Complete Edges

Easy
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In complete bipartite K(a,b), how many edges?...
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