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Recent questions tagged cmi2017
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1
CMI2017B8
Consider the following function that takes as input a sequence $A$ of integers with n elements, $A$$\left [ A1 \right ]$, $\left [ A2 \right ], \ldots, \left [ An \right ]$and an integer $k$ and returns an integer value. The function length$(S)$ ... complexity of this algorithm in terms of the length of the input sequence $A$? Give an example of a worstcase input for this algorithm.
asked
Feb 5
in
Algorithms
by
Tesla!
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(
16.1k
points)

110
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cmi2017
algorithms
timecomplexity
descriptive
0
votes
1
answer
2
CMI2017B6
We are given a sequence of pairs of integers (a1, b1),(a2, b2), . . .(an, bn). We would like to compute the largest k such that there is a sequence of numbers ci1 ≤ ci2 ≤ . . . ≤ cik with 1 ≤ i1 < i2 < ... < ik ≤ n and for each j ≤ k, cij = aij or cij = bij . Describe an algorithm to solve this problem and explain its complexity.
asked
Feb 5
in
Algorithms
by
Tesla!
Boss
(
16.1k
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101
views
cmi2017
algorithms
timecomplexity
0
votes
2
answers
3
CMI2017B5
An undirected graph is connected if, for any two vertices {u, v} of the graph, there is a path in the graph starting at u and ending at v. A tree is a connected, undirected graph that contains no cycle. (a) A leaf in a tree is a vertex that has degree 1. Prove that ... that is, u ∈ V1 and v ∈ V2 or vice versa. Prove that if G is a tree with at least two vertices, then G is bipartite.
asked
Feb 5
in
Graph Theory
by
Tesla!
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16.1k
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106
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cmi2017
graphtheory
0
votes
2
answers
4
CMI2017B4
In a party there are 2n participants, where n is a positive integer. Some participants shake hands with other participants. It is known that there are no three participants who have shaken hands with each other. Prove that the total number of handshakes is not more than n2
asked
Feb 5
in
Combinatory
by
Tesla!
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(
16.1k
points)

107
views
cmi2017
handshake
permutationsandcombinations
0
votes
0
answers
5
CMI2017B3
Let Σ = {a, b}. Given words u, v ∈ Σ* , we say that v extends u if v is of the form xuy for some x, y ∈ Σ* . Given a fixed word u, we are interested in identifying whether a finite state automaton accepts some word that extends u. Describe an algorithm that takes ... u ∈ Σ* and reports Yes if some word in the language of A extends u and No if no word in the language of A extends u.
asked
Feb 5
in
Theory of Computation
by
Tesla!
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16.1k
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63
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cmi2017
theoryofcomputation
+1
vote
0
answers
6
CMI2017B2
There are a number of tourist spots in a city and a company GoMad runs shuttle services between them. Each shuttle plies between a designated origin and destination, and has a name. Due to lack of coordination, the same name may be allotted to multiple routes. To make ... whether you are carrying a GoMad pass or a GoCrazy pass, you can start at s and arrive at t using the sequence σ.
asked
Feb 5
in
Algorithms
by
Tesla!
Boss
(
16.1k
points)

55
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cmi2017
algorithms
0
votes
1
answer
7
CMI2017B1
Let Σ = {a, b, c}. Let Leven be the set of all even length strings in Σ* (a) Construct a deterministic finite state automaton for L$_{EVEN}$. (b) We consider an operation Erase$_{ab}$ that takes as input a string w ∈ Σ* and erases all occurrences of the pattern ab from w ... in L: Erease$_{ab}$(L):= { Erease$_{ab}$(w)  w$\in$ L} Show that Erase$_{ab}$(L$_{even}$) is a regular language.
asked
Feb 5
in
Theory of Computation
by
Tesla!
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16.1k
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90
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cmi2017
theoryofcomputation
+1
vote
1
answer
8
CMI2017A10
We have constructed a polynomial time reduction from problem $A$ to problem $B$. Which of the following is a valid inference? If the best algorithm for $B$ takes exponential time, there is no polynomial time algorithm for $A$ If the best algorithm for $A$ takes ... we don't know whether there is a polynomial time algorithm for $B$, there cannot be a polynomial time algorithm for $A$.
asked
Feb 5
in
Algorithms
by
Tesla!
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16.1k
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176
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cmi2017
algorithms
theoryofcomputation
+1
vote
1
answer
9
CMI2017A09
Suppose we constructed the binary search tree shown below by starting with an empty tree and inserting one element at a time from an input sequence, without any rotations or other manipulations. Which of the following assertions about the order of elements in the input sequence cannot be ... 37. (c) 1 came after 12 and 29 came before 42. (d) 3 came before 14 and 16 came before 28.
asked
Feb 5
in
Algorithms
by
Tesla!
Boss
(
16.1k
points)

83
views
cmi2017
algorithms
0
votes
1
answer
10
CMI2017A08
A stable sort preserves the order of values that are equal with respect to the comparison function. We have a list of three dimensional points [(7, 1, 8),(3, 5, 7),(6, 1, 4),(6, 5, 9),(0, 2, 5),(9, 0, 9)]. We sort these in ascending order by the second coordinate. Which of the following corresponds to a ... 7),(6, 5, 9)] [(9, 0, 9),(6, 1, 4),(7, 1, 8),(0, 2, 5),(3, 5, 7),(6, 5, 9)]
asked
Feb 5
in
Algorithms
by
Tesla!
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16.1k
points)

148
views
cmi2017
algorithms
sorting
0
votes
1
answer
11
CMI2017A07
Consider the following functions f() and g(). f(){ g(){ w=5; z=w+1; w=2*z+2; z=3*zw; } print(z); } We start with w and z set to 0 and execute f() and g() in parallel—that is, at each step we either execute one statement from f() or one statement from g(). Which of the following is not a possible value printed by g()? (a) 2 (b) 1 (c) 2 (d) 4
asked
Feb 5
in
Programming
by
Tesla!
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16.1k
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71
views
cmi2017
output
programming
0
votes
1
answer
12
CMI2017A06
What does the following function compute in terms of n and d, for integer values of d? Note that the operation / denotes floating point division, even if the arguments are both integers. function foo(n,d){ if (d == 0){ return 1; }else{ if (d < 0){ return foo(n,d+1)/n; }else{ return ... ;0 (b) $n^{d}$ for all values of d (c) n*d if d>0, n/d if d<0 (d) n*d for all values of d
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Feb 5
in
Programming
by
Tesla!
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16.1k
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87
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programminginc
programming
cmi2017
+1
vote
1
answer
13
CMI2017A05
Let G be an arbitrary graph on n vertices with 4n − 16 edges. Consider the following statements: I There is a vertex of degree smaller than 8 in G. II There is a vertex such that there are less than 16 vertices at distance exactly 2 from it. Which of the following is true: (a) I only (c) Both I and II (b) II only (d) Neither I nor II
asked
Feb 5
in
Graph Theory
by
Tesla!
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(
16.1k
points)

77
views
graphtheory
cmi2017
0
votes
1
answer
14
CMI2017A04
City authorities are concerned about traffic accidents on major roads. They would like to have ambulances stationed at road intersections to quickly reach the scene of any accident along these roads. To minimize response time, ambulances are to be located at intersections with ... (b) Find a spanning tree with minimum (c) Find a minimal coloring. (d) Find a minimum size vertex cover.
asked
Feb 5
in
Graph Theory
by
Tesla!
Boss
(
16.1k
points)

57
views
algorithms
graphalgorithms
cmi2017
+1
vote
1
answer
15
CMI2017A03
Four siblings go shopping with their father. If Abhay gets shoes, then Asha does not get a necklace. If Arun gets a Tshirt, then Aditi gets bangles. If Abhay does not get shoes or Aditi gets bangles, the mother will be happy. Which of the following is TRUE? If the ... shoes. If the mother is not happy, then Asha did not get a necklace and Arun did not get a Tshirt. None of the above.
asked
Feb 5
in
Mathematical Logic
by
Tesla!
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16.1k
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100
views
mathematicallogic
cmi2017
propositionallogic
+3
votes
1
answer
16
CMI2017A02
An FM radio channel has a repository of $10$ songs. Each day, the channel plays $3$ distinct songs that are chosen randomly from the repository. Mary decides to tune in to the radio channel on the weekend after her exams. What is the probability that no song gets repeated during these ... \\ 3 \end{pmatrix}*\begin{pmatrix} 7\\ 3 \end{pmatrix}*\begin{pmatrix} 10\\ 6 \end{pmatrix}^{1}$
asked
Feb 5
in
Probability
by
Tesla!
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16.1k
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116
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probability
cmi2017
+3
votes
1
answer
17
CMI2017A01
The regular expression $(a^*+b)^*$ is equivalent to which of the following regular expressions: $a^*b^*$ $(a^*b+b)^*$ $(a+b^*)^*$ $(a^*b)^*$
asked
Feb 5
in
Theory of Computation
by
Tesla!
Boss
(
16.1k
points)

218
views
theoryofcomputation
regularexpressions
cmi2017
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