Suppose we run Dijkstra's single-source shortest-path algorithm on the weighted directed graph below, starting from node a. When the algorithm terminates, the seven edges (prev[u],u), with u in the set {b,c,d,e,f,g,h}, make up the shortest-path tree.

What is the tree's weight, that is, what is the sum of its edges' weights?

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Hope this answer helps you, please d let me know for any queries :    \begin{array}{lllllllll} & a & b & c & d & e & f & q & h \\\{a\} & 0 & \infty & \infty & \infty & \infty & \infty & \infty & \infty \\\{a\} & \infty & \prod & \infty & \infty & 9 & 8 & \infty & \infty \\\{a, c\}\} & & 2+ & \infty & 9 & 6+1 & 6+1 & \infty \\\{a, b, c, d\} & & & & 9 & 9 & 6 & 8 \\\{a, b, c, d, b & & & 9 & 1 & 8\end{array}The final tree is:-\begin{aligned}\text { Weight of Tree } & =1+2+1+1+1+1+2 \\& =9\end{aligned} ...