Select all the statements below which are TRUE: Dijkstra\'s algorithm is used to

Question

Select all the statements below which are TRUE: Dijkstra's algorithm is used to compute a minimum spanning tree for a graph G, where G is undirected and weighted, and all the edge weights are nonnegative. ? TREE-INSERT(Tz) is the insert operation for Binary Search Trees (BST). TREE-INSERT(TZ) has the worst-case running time ? (lgn), where n is the number of nodes in the tree. To show that a greedy algorithm always yields an optimal solution, we need to prove the greedy-choice property. We do not need to prove the optimal substructure property. ? Let G be an undirected graph. In the adjacency-list representation of G, the surn of the lengths of adiacency lists is 21E1. ? Consider two sequences X and Y that both end with A. Then any Longest Common Subsequence (LCS) of X and Y must end with A. O Let G be an undirected graph. Thenteuning Depth-First Search (DFS) on G, every edge of G is either a tree edge or a back edge.

Explanation / Answer

Option 1 and 2 are correct,

3 is wrong since optimal substructure should be proven on each step of greedy technique

Option 4 5 and 6 are correct

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