We have unweighted undirected graph with n vertices and m edges (n < 1e5, m < 1e6). You need to find sum of d(u, v) over all pairs of u v, where d(u, v) — minimal distance between u and v.
We have unweighted undirected graph with n vertices and m edges (n < 1e5, m < 1e6). You need to find sum of d(u, v) over all pairs of u v, where d(u, v) — minimal distance between u and v.
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