Let G be a connected graph. The Weiner index of G, denoted W .G/, is the sum of the
Chapter 50, Problem 50.19(choose chapter or problem)
Let G be a connected graph. The Weiner index of G, denoted W .G/, is the sum of the distances between all pairs of vertices in G. In other words, if V .G/ D f1; 2; 3; : : : ; ng, then W .G/ D X 1i
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