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Self Doubt
Consider the following relation: R (A1, A2, ….An) and every (n-2) attributes of R forms a candidate key. How many super keys are there in R?
asked
in
Databases
Jan 21, 2019
1.8k
views
databases
superkeys
1
vote
1
answer
2
Self Doubt
The average no. of comparisons performed by the merge sort algorithm, in merging 2 sorted lists of length 2 is___________. Ans: $\frac{8}{3}$
asked
in
Algorithms
Jan 19, 2019
691
views
algorithms
merge-sort
sorting
0
votes
1
answer
3
Self Doubt
Find the minimum number of states in the DFA which accept the language of all strings that begin or end with 00 or 11.
asked
in
Theory of Computation
Jan 19, 2019
766
views
finite-automata
number-of-dfa
minimal-state-automata
2
votes
1
answer
4
Self Doubt
If L is CFL then $\bar{L}$ is Recursive. ( True/False) If L is CFL then $\bar{L}$ is RE. (True/Flase).
asked
in
Theory of Computation
Dec 13, 2018
469
views
theory-of-computation
decidability
0
votes
1
answer
5
Probablity
Suppose each of three men at a party throws his hat into the center of the room. The hats are first mixed up and each man randomly selects a hat. what is the probability that- a. All of three men select his own hat. b.None of three men select his own hats.
asked
in
Probability
Nov 22, 2018
3.7k
views
probability
engineering-mathematics
0
votes
0
answers
6
Relational Algebra
Online Site For practicing Relational Algebra https://dbis-uibk.github.io/relax/calc.htm
asked
in
Databases
Oct 27, 2018
539
views
relational-algebra
databases
relations
relational-calculus
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