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minimum spanning tree

GATE CSE & IT · Graph Theory · 1991-2026

21
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95%
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3
elite explanations
13
years appeared

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Rosen — Discrete Mathematics and Its Applications

Discrete structures, counting, relations, graph theory

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2026 PYQ

Let $G(V, E)$ be a simple, undirected, edge-weighted graph with unique edge weights. Which of the following statements about the minimum spanning trees (MST) of $G$ is/are true?

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2025 Q18

Let G be any undirected graph with positive edge weights, and T be a minimum spanning tree of G. For any two vertices, u and v, let d₁(u, v) and d₂(u, v) be the shortest distances...

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2025 Q64

The maximum value of x such that the edge between the nodes B and C is included in every minimum spanning tree of the given graph is __________. (answer in integer)

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2025 PYQ

Let $G$ be any undirected graph with positive edge weights, and $T$ be a minimum spanning tree of $G$. For any two vertices, $u$ and $v$, let $d_1(u, v)$ and $d_2(u, v)$ be the sho...

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2025 PYQ

Let $G$ be an edge-weighted undirected graph with positive edge weights. Suppose a positive constant $\alpha$ is added to the weight of every edge. Which ONE of the following state...

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2022 PYQ

Consider a simple undirected weighted graph G, all of whose edge weights are distinct. Which of the following statements about the minimum spanning trees of G is/are TRUE?

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2021 PYQ

Let G be a connected undirected weighted graph. Consider the following two statements. S 1 : There exists a minimum weight edge in G which is present in every minimum spanning tree...

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2020 PYQ

Consider a graph G = (V, E), where V = {v 1 , v 2 , ...., v 100 }, E = {(v i , v j ) | 1 ≤ i < j ≤ 100}, and weight of the edge (v i , v j ) is |i - j|. The weight of the minimum s...

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2020 PYQ

Let G = (V, E) be a weighted undirected graph and let T be a Minimum Spanning Tree (MST) of G maintained using adjacency lists. Suppose a new weighted edge (u, v) $$ \in $$ V $$ \t...

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2019 PYQ

Let G be any connected, weighted, undirected graph. I. G has a unique minimum spanning tree, if no two edges of G have the same weight. II. G has a unique minimum spanning tree, if...

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2016 PYQ

Let $$G$$ be a weighted connected undirected graph with distinct positive edge weights. If every edge weight is increased by the same value, then which of the following statements...

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2016 PYQ

$$G = (V,E)$$ is an undirected simple graph in which each edge has a distinct weight, and e is a particular edge of G. Which of the following statements about the minimum spanning...

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2012 PYQ

Let G be a weighted graph with edge weights greater than one and G' be the graph constructed by squaring the weights of edges in G. Let T and T' be the minimum spanning trees of G...

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2010 PYQ

Consider a complete undirected graph with vertex set {0, 1, 2, 3, 4}. Entry W(ij) in the matrix W below is the weight of the edge {i, j}. $$$w = \left( {\matrix{ 0 & 1 & 8 & 1 & 4...

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2010 PYQ

Consider a complete undirected graph with vertex set {0,1,2,3,4}. Entry W ij in the matrix W below is the weight of the edge {i, j} $$$W = \left( {\matrix{ 0 & 1 & 8 & 1 & 4 \cr 1...

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2007 PYQ

Let w be the minimum weight among all edge weights in an undirected connected graph. Let e be a specific edge of weight w . Which of the following is FALSE?

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2006 PYQ

Consider a weighted complete graph $$G$$ on the vertex set $$\left\{ {{v_1},\,\,\,{v_2},....,\,\,\,{v_n}} \right\}$$ such that the weight of the edge $$\left( {{v_i},\,\,\,\,{v_j}}...

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2006 PYQ

Consider a weighted complete graph G on the vertex set {v1, v2, ..vn} such that the weight of the edge (vi, vj) is $$2|i-j|$$. The weight of a minimum spanning tree of G is:

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2006 PYQ

If all the edge weights of an undirected graph are positive, then any subject of edges that connects all the vertices and has minimum total weight is a

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2000 PYQ

Let G be an undirected connected graph with distinct edge weight. Let emax be the edge with maximum weight and emin the edge with minimum weight. Which of the following statements...

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1991 PYQ

Kruskal’s algorithm for finding a minimum spanning tree of a weighted graph G with n vertices and m edges has the time complexity of:

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