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Recent questions tagged spanning-tree
3
votes
2
answers
31
Spannig trees
For a complete graph with 10 vertices, The number of spanning trees is at least_____?
Parshu gate
asked
in
Graph Theory
Nov 16, 2017
by
Parshu gate
2.4k
views
spanning-tree
graph-theory
4
votes
0
answers
32
Number of spanning Trees
Hi, As all of us knows number of spanning tree of simple labeled graph could be computed by the Kirchhoff's theorem. But is there any other method (other than Brute force) to compute the number of spanning tree of given general graph ? Formula for ... respectively. If anyone can state simple proof for above mentioned formula then it will great help.
Chhotu
asked
in
Graph Theory
Nov 15, 2017
by
Chhotu
5.4k
views
spanning-tree
algorithms
graph-theory
1
vote
3
answers
33
UGC NET CSE | December 2008 | Part 2 | Question: 3
The total number of spanning trees that can be drawn using five labeled vertices is: 125 64 36 16
rishu_darkshadow
asked
in
DS
Sep 25, 2017
by
rishu_darkshadow
3.8k
views
ugcnetcse-dec2008-paper2
data-structures
spanning-tree
0
votes
1
answer
34
Basic Doubt in spanning tree complexity
Let us say Simple graph has V vertices and E edges. Now i am trying to find relation between E and V. If it is a complete graph ,then E=V(V-1)/2, => E=$c.V^2$ => E=$O(V^2)$ => taking log of both sides. => $\log E$=$O(\log V)$-- ... .------------------(3) Can someone confirm if the 1 ,2 and the result of them i.e the 3rd equation is valid ?
rahul sharma 5
asked
in
Algorithms
Sep 16, 2017
by
rahul sharma 5
716
views
spanning-tree
time-complexity
1
vote
1
answer
35
[Discrete maths] Spanning trees
True/False; 1. Every tree is spanning tree.
rahul sharma 5
asked
in
Graph Theory
Sep 16, 2017
by
rahul sharma 5
730
views
algorithms
spanning-tree
minimum-spanning-tree
2
votes
2
answers
36
Graph Theory
Consider a 'reversed Kruskal' Algorithm for computing a MST. Initialize T to be the set of all edges in the graph. Now consider edges from largest to smallest cost. For each edge, delete it from T if that edge belongs to a cycle in T. Assuming all the edge costs are distinct, does this new algorithm correctly compute a MST? a) Yes b) no c) cant say
Rakshit Gupta
asked
in
Graph Theory
Sep 13, 2017
by
Rakshit Gupta
1.3k
views
graph-theory
graph-matching
graph-connectivity
spanning-tree
1
vote
3
answers
37
No of spanning Trees
Let $K_n$ denote the complete undirected graph with $n$ vertices where n is an even number. Find the maximum number of spanning trees of $K_n$ that can be formed in such a way that no two of these spanning trees have a common edge.
dd
asked
in
Graph Theory
Mar 19, 2017
by
dd
5.5k
views
spanning-tree
graph-theory
0
votes
1
answer
38
testbook
Sarvottam Patel
asked
in
Theory of Computation
Feb 7, 2017
by
Sarvottam Patel
466
views
spanning-tree
0
votes
3
answers
39
Virtual Gate Test Series: Algorithms - Minimum Spanning Tree
I think all options are wrong
Purple
asked
in
Algorithms
Jan 11, 2017
by
Purple
1.1k
views
algorithms
spanning-tree
minimum-spanning-tree
prims-algorithm
virtual-gate-test-series
12
votes
4
answers
40
GATE CSE 1989 | Question: 4-vii
In the graph shown above, the depth-first spanning tree edges are marked with a $’ T’$. Identify the forward, backward, and cross edges.
makhdoom ghaya
asked
in
Algorithms
Nov 30, 2016
by
makhdoom ghaya
2.7k
views
gate1989
descriptive
algorithms
graph-algorithms
spanning-tree
depth-first-search
4
votes
1
answer
41
Spanning Trees
Consider the following adjacency matrix representation of connected graph then find the number of spanning trees are possible for the given graph $\begin{bmatrix} 0&1&1&1&0 \\ 1&0&1&1&0 \\1&1&0&0&1 \\ 1&1&0&0&1 \\0&0&1&1&0 \end{bmatrix}$
Rohan Mundhey
asked
in
Algorithms
Nov 11, 2016
by
Rohan Mundhey
1.3k
views
numerical-answers
spanning-tree
graph-algorithms
1
vote
4
answers
42
UGC NET CSE | August 2016 | Part 3 | Question: 33
Consider a weighted complete graph $G$ on the vertex set $\left\{ν_{1} , ν_{2},.... ν_{n} \right\}$ such that the weight of the edge $(ν_{i} , ν_{j})$ is $4 | i – j|$. The weight of minimum cost spanning tree of $G$ is : $4n^{2}$ $n$ $4n – 4$ $2n – 2$
makhdoom ghaya
asked
in
DS
Oct 1, 2016
by
makhdoom ghaya
1.8k
views
ugcnetcse-aug2016-paper3
data-structures
spanning-tree
2
votes
1
answer
43
#spanningtree
What is the upper bound on the number of edge disjoint spanning trees in a complete graph of n vertices. a. n b. n-1 c. n/2 d. n/3
saurabh rai
asked
in
Algorithms
Aug 27, 2016
by
saurabh rai
586
views
algorithms
spanning-tree
1
vote
1
answer
44
Spanning trees
Find the number of spanning trees in the following graph;
Amit puri
asked
in
Algorithms
Aug 22, 2016
by
Amit puri
3.0k
views
graph-theory
spanning-tree
0
votes
1
answer
45
Virtual Gate Test Series: Algorithms - Spanning Tree
debanjan sarkar
asked
in
Algorithms
Jul 15, 2016
by
debanjan sarkar
587
views
algorithms
spanning-tree
minimum-spanning-tree
virtual-gate-test-series
7
votes
5
answers
46
ISRO2015-41
The number of spanning trees for a complete graph with seven vertices is $2^5$ $7^5$ $3^5$ $2^{2 \times 5}$
shivanisrivarshini
asked
in
Algorithms
Jun 5, 2016
by
shivanisrivarshini
6.8k
views
isro2015
algorithms
spanning-tree
1
vote
0
answers
47
ISI2012-PCB-CS-4
A fan of order $n$ is a graph on the vertices $\{0, 1, \dots, n\}$ with $2n − 1$ edges defined as follows: vertex $0$ is connected by an edge to each of the other $n$ vertices, and vertex $i$ ... the number of spanning trees of the fan of order $n$. Calculate $f_4$. Write a recurrence for $f_n$. Solve for fn using ordinary generating functions.
go_editor
asked
in
Graph Theory
Jun 2, 2016
by
go_editor
684
views
descriptive
isi2012-pcb-cs
graph-theory
spanning-tree
generating-functions
1
vote
1
answer
48
ISI2014-PCB-CS-3b
Let $G = (V, E)$ be an undirected weighted graph with all edge weights being positive. Design an efficient algorithm to find the maximum spanning tree of $G$.
go_editor
asked
in
Algorithms
May 31, 2016
by
go_editor
688
views
descriptive
isi2014-pcb-cs
algorithms
spanning-tree
graph-algorithms
2
votes
1
answer
49
CMI2015-A-04a
A college prepares its timetable by grouping courses in slots A, B, C, . . . All courses in a slot meet at the same time, and courses in different slots have disjoint timings. Course registration has been completed and the administration now knows ... a spanning tree with minimum number of edges Find a minimal coloring Find a minimum size vertex cover Find a maximum size independent
go_editor
asked
in
Graph Theory
May 27, 2016
by
go_editor
809
views
cmi2015
descriptive
graph-theory
spanning-tree
0
votes
1
answer
50
Upper bound on the number of edge disjoint spanning trees in a complete graph of n vertices?
gshivam63
asked
in
Algorithms
May 19, 2016
by
gshivam63
2.9k
views
algorithms
spanning-tree
37
votes
5
answers
51
GATE CSE 2010 | Question: 51
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 $\{i, j\}$ ... weight of a path $P$ from vertex $1$ to vertex $2$ in this graph such that $P$ contains at most $3$ edges? $7$ $8$ $9$ $10$
go_editor
asked
in
Algorithms
Apr 21, 2016
by
go_editor
14.8k
views
gatecse-2010
normal
algorithms
spanning-tree
40
votes
6
answers
52
GATE CSE 2011 | Question: 55
An undirected graph $G(V,E)$ contains $n \: (n>2)$ nodes named $v_1,v_2, \dots, v_n$. Two nodes $v_i, v_j$ are connected if and only if $ 0 < \mid i-j\mid \leq 2$. Each edge $(v_i,v_j)$ is assigned a weight $i+j$. A sample graph with $n=4$ is shown below. The length of the path from $v_5$ to $v_6$ in the MST of previous question with $n=10$ is $11$ $25$ $31$ $41$
go_editor
asked
in
Algorithms
Apr 21, 2016
by
go_editor
11.7k
views
gatecse-2011
algorithms
graph-algorithms
spanning-tree
normal
117
votes
6
answers
53
GATE CSE 2016 Set 1 | Question: 40
$G=(V, E)$ 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 trees $(MSTs)$ of $G$ is/are TRUE? If $e$ is the lightest edge of some ... some cycle in $G$, then every MST of $G$ excludes $e$. I only. II only. Both I and II. Neither I nor II.
Sandeep Singh
asked
in
Algorithms
Feb 12, 2016
by
Sandeep Singh
26.1k
views
gatecse-2016-set1
algorithms
spanning-tree
normal
85
votes
18
answers
54
GATE CSE 2016 Set 1 | Question: 39
Let $G$ be a complete undirected graph on $4$ vertices, having $6$ edges with weights being $1, 2, 3, 4, 5,$ and $6$. The maximum possible weight that a minimum weight spanning tree of $G$ can have is __________
Sandeep Singh
asked
in
Algorithms
Feb 12, 2016
by
Sandeep Singh
35.3k
views
gatecse-2016-set1
algorithms
spanning-tree
normal
numerical-answers
62
votes
8
answers
55
GATE CSE 2016 Set 1 | Question: 14
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 is/are TRUE? $P$: Minimum spanning tree of $G$ does not change. $Q$: Shortest path between any pair of vertices does not change. $P$ only $Q$ only Neither $P$ nor $Q$ Both $P$ and $Q$
Sandeep Singh
asked
in
Algorithms
Feb 12, 2016
by
Sandeep Singh
22.5k
views
gatecse-2016-set1
algorithms
spanning-tree
normal
0
votes
0
answers
56
Calculation of the number of spanning trees
Hi,I just encountered problems about calculation of the number of spanning trees,like this one: https://gateoverflow.in/10154/find-out-the-no-of-spanning-tree-possible I am able to proceed to choose the number of edges.But I am ... calculation of large determinants for such problem,which is not feasible.Are you aware of any other method to do the same?
Rachit Saxena
asked
in
Algorithms
Dec 9, 2015
by
Rachit Saxena
572
views
spanning-tree
11
votes
3
answers
57
find out the no. of spanning tree possible
How many spanning trees are possible from the graph given below? $24$ $34$ $44$ $54$
Gunjan Rathore
asked
in
Algorithms
May 2, 2015
by
Gunjan Rathore
4.7k
views
spanning-tree
graph-algorithms
numerical-answers
44
votes
5
answers
58
GATE CSE 2015 Set 3 | Question: 40
Let $G$ be a connected undirected graph of $100$ vertices and $300$ edges. The weight of a minimum spanning tree of $G$ is $500$. When the weight of each edge of $G$ is increased by five, the weight of a minimum spanning tree becomes ______.
go_editor
asked
in
Algorithms
Feb 15, 2015
by
go_editor
10.8k
views
gatecse-2015-set3
algorithms
spanning-tree
easy
numerical-answers
70
votes
5
answers
59
GATE CSE 2015 Set 1 | Question: 43
The graph shown below has $8$ edges with distinct integer edge weights. The minimum spanning tree (MST) is of weight $36$ and contains the edges: $\{(A, C), (B, C), (B, E), (E, F), (D, F)\}$. The edge weights of only ... which are in the MST are given in the figure shown below. The minimum possible sum of weights of all $8$ edges of this graph is_______________.
makhdoom ghaya
asked
in
Algorithms
Feb 13, 2015
by
makhdoom ghaya
17.6k
views
gatecse-2015-set1
algorithms
spanning-tree
normal
numerical-answers
0
votes
3
answers
60
Minimum cost spanning tree
Please explain why the answer is a)
dhingrak
asked
in
Algorithms
Dec 12, 2014
by
dhingrak
806
views
algorithms
spanning-tree
minimum-spanning-tree
made-easy-test-series
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