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1
UGC NET CSE | September 2013 | Part 3 | Question: 39
The number of possible paranthesizations of a sequence of n matrices is O(n) $\theta$(n Ig n) $\Omega(2^n)$ None of the above
The number of possible paranthesizations of a sequence of n matrices isO(n)$\theta$(n Ig n)$\Omega(2^n)$None of the above
1.3k
views
commented
Nov 28, 2019
Algorithms
ugcnetcse-sep2013-paper3
algorithms
dynamic-programming
matrix-chain-ordering
+
–
2
answers
2
self doubt
Is there any shortcut or Trick to get min number of multiplication faster? I mean if we could know the right split.
Is there any shortcut or Trick to get min number of multiplication faster? I mean if we could know the right split.
1.5k
views
commented
Nov 28, 2019
Algorithms
algorithms
dynamic-programming
matrix-chain-ordering
+
–
6
answers
3
GATE CSE 2018 | Question: 31
Assume that multiplying a matrix $G_1$ of dimension $ p \times q$ with another matrix $G_2$ of dimension $q \times r$ requires $pqr$ scalar multiplications. Computing the product of $n$ matrices $G_1G_2G_3 \dots G_n$ can be done by parenthesizing ... the explicitly computed pairs is/are $F_1F_2$ and $F_3F_4$ only $F_2F_3$ only $F_3F_4$ only $F_1F_2$ and $F_4F_5$ only
Assume that multiplying a matrix $G_1$ of dimension $ p \times q$ with another matrix $G_2$ of dimension $q \times r$ requires $pqr$ scalar multiplications. Computing the...
19.1k
views
commented
Nov 28, 2019
Algorithms
gatecse-2018
algorithms
dynamic-programming
2-marks
+
–
2
answers
4
Virtual Gate Test Series: Algorithms - Matrix Chain Ordering
Consider the following chain of matrices $A_{1}$ to $A_{4}$ having dimensions given below $A_{1}\rightarrow 2\times 3$ $A_{2}\rightarrow 3\times 5$ $A_{3}\rightarrow 5\times 4$ $A_{4}\rightarrow 4\times 2$ The following table is filled ... of scalar multiplications$:$ What are the values of $P$ and $Q?$ $60,140$ $60,82$ $60,40$ $60,92$
Consider the following chain of matrices $A_{1}$ to $A_{4}$ having dimensions given below$A_{1}\rightarrow 2\times 3$$A_{2}\rightarrow 3\times 5$$A_{3}\rightarrow 5\times...
1.2k
views
commented
Nov 28, 2019
Algorithms
algorithms
dynamic-programming
matrix-chain-ordering
virtual-gate-test-series
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–
2
answers
5
Ace test series
Guys, I am not getting C as the ans..Can someone help.
Guys, I am not getting C as the ans..Can someone help.
593
views
answered
Oct 29, 2019
1
answer
6
forouzan crc generator
find the status of the following generators related to two isolated, single bit errors. a.) x+1 b,) x^4+1 c) x^7+x^6+1 d) x^15+x^14+1 please explain this with examples in detail
find the status of the following generators related to two isolated, single bit errors.a.) x+1b,) x^4+1c) x^7+x^6+1d) x^15+x^14+1please explain this with examples in deta...
1.5k
views
answered
Oct 29, 2019
3
answers
7
Virtual Gate Test Series: Computer Networks - Subnet Mask
Which of the following statements are correct regarding subnet mask $255.255.240.0?$ i. Class A network subnet mask$: 4096$ subnets and $4096$ systems per subnetwork ii. Class B network subnet mask$: 16$ subnets and $4096$ systems per ... network subnet mask$: 1$ subnet and $ 256$ systems per subnetwork All are correct i, ii i, iii ii, iii
Which of the following statements are correct regarding subnet mask $255.255.240.0?$i. Class A network subnet mask$: 4096$ subnets and $4096$ systems per subnetworkii. Cl...
941
views
commented
Oct 7, 2019
Computer Networks
computer-networks
subnetting
virtual-gate-test-series
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–
2
answers
8
csma/cd
who generate JAM signal while collision?
who generate JAM signal while collision?
786
views
commented
Aug 25, 2019
Computer Networks
csma-cd
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–
1
answer
9
MadeEasy Test Series: Computer Networks - Csma Cd
A)340 bits B) 240bits
A)340 bits B) 240bits
458
views
commented
Aug 25, 2019
Computer Networks
made-easy-test-series
csma-cd
+
–
2
answers
10
Csma/Cd
We know that transmission time Tx=L/B where L is the frame size and B is the bandwidth. In Csma/Cd, in order to find out the min frame size L, we equate it with the bandwidth delay product and obtain the formula L=BR(R is the round trip time). R=L/B R=2Tp ... 2B) How is this possible that the Tx and R has the same formula and Tp becomes the function of L and B? Please clear me this thing .
We know that transmission time Tx=L/B where L is the frame size and B is the bandwidth.In Csma/Cd, in order to find out the min frame size L, we equate it with the bandwi...
1.8k
views
answered
Aug 25, 2019
2
answers
11
CSMA/CD
In standard ethernet with transmission rate of 20 Mbps, the length of the cables is 2500 m and the size of frame is 512 bits. The propagation speed of a signal in a cable is 2 × 108 m/s. The percentage of the time channel is idle or not used by a station is _________ (in approximate integer value).
In standard ethernet with transmission rate of 20 Mbps, the length of the cables is 2500 m and the size of frame is 512 bits. The propagation speed of a signal in a cable...
4.9k
views
commented
Aug 25, 2019
Computer Networks
computer-networks
csma-cd
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–
0
answers
12
prim's algorithm and krushkal's algorithm
Can someone please provide better explaination about how the complexity can be obtained for prim's and krushkal's algorithms using heaps.. by both binary heap and fibonacci heap... i am stuck there please help with pseudocode or general explaination
Can someone please provide better explaination about how the complexity can be obtained for prim's and krushkal's algorithms using heaps.. by both binary heap and fibonac...
519
views
commented
Aug 23, 2019
0
answers
13
Self Doubt on SQL AND operator
Here why does the 5th query select * from employees natural join works_on where PID = 'X' AND PID='Y'; is not working The queries are The output are
Here why does the 5th query select * from employees natural join works_on where PID = 'X' AND PID='Y'; is not workingThe queries are The output are
683
views
commented
May 2, 2019
Databases
sql
databases
relational-algebra
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–
2
answers
14
Self Doubt: Databases ER diagram
Here if check_txn contains its own attributes then during converting into a relational model where does its attributes will be placed either in account side ( strong entity set) or check side (weak entity set)? and why?
Here if check_txn contains its own attributes then during converting into a relational model where does its attributes will be placed either in account side ( strong enti...
814
views
commented
Apr 26, 2019
Databases
databases
er-diagram
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–
1
answer
15
AVL Tree Balancing
here what to do first as FIZZA and IMRAN both are unbalanced than either to do RR rotation from FIZZA-IMRAN-NAVEEN or RL rotation from IMRAN-NAVEEN-LOVELY
here what to do first as FIZZA and IMRAN both are unbalanced than either to do RR rotation from FIZZA-IMRAN-NAVEEN or RL rotation from IMRAN-NAVEEN-LOVELY
795
views
asked
Apr 13, 2019
DS
avl-tree
data-structures
tree
binary-search-tree
algorithms
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–
0
answers
16
COA booth algorithm self doubt
Why we do right shift in booth algorithm? I know the working of booths algorithm. Suppose we have multiplicand M = 01011 and multiplier Q = 01110 We can write Q as (2^4 - 2^1). So multiplication reduces to 2^4(M) + 2(-M) Now booths algorithm rules ... ^4(M) + 2(-M) we multiply by 16 and 2 which requires left shift. So how is booths algorithm working with right shift ?
Why we do right shift in booth algorithm?I know the working of booths algorithm.Suppose we have multiplicand M = 01011and multiplier Q = 01110We can write Q as (2^4 - 2^1...
1.4k
views
asked
Feb 4, 2019
CO and Architecture
booths-algorithm
co-and-architecture
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–
1
answer
17
data types
what is the output of the following programming???? and am confusing is unsigned int stores signed integer, and what is ~ ' this symbol ?? and what happened when assigning ~0' to y????? and what will be printed when x,y are printing and how ? can anyone tell me ... printf("same"); else printf("not same"); printf("\n x is %u, y is %u", x, y); return 0; }
what is the output of the following programming????and am confusing is unsigned int stores signed integer, and what is ‘ ~ ’ this symbol ?? and what happened when ass...
457
views
answer edited
Jan 25, 2019
Programming in C
programming
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–
2
answers
18
GATE2017 EC-2: GA-5
$500$ students are taking one or more course out of Chemistry, Physics, and Mathematics. Registration records indicate course enrollment as follows: Chemistry $(329)$, Physics $(186)$, and Mathematics $(295)$. Chemistry and Physics $(83)$, Chemistry and Mathematics $(217)$, and Physics and Mathematics (63). How many students are taking all $3$ subjects? $37$ $43$ $47$ $53$
$500$ students are taking one or more course out of Chemistry, Physics, and Mathematics. Registration records indicate course enrollment as follows: Chemistry $(329)$, Ph...
4.5k
views
commented
Jan 25, 2019
Quantitative Aptitude
gate2017-ec-2
general-aptitude
quantitative-aptitude
venn-diagram
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–
0
answers
19
made easy advanced level test
Consider two processes: Assume x and y are shared variables and initialized to 0. Which statement is true? A)No mutual exclusion and no deadlock B)No mutual exclusion but progress satisfies C)Progress and mutual exclusion both satisfies D)Mutual exclusion and deadlocks Is A and B both are true??
Consider two processes:Assume x and y are shared variables and initialized to 0. Which statement is true?A)No mutual exclusion and no deadlockB)No mutual exclusion but pr...
647
views
commented
Jan 25, 2019
0
answers
20
geeksforgeeks
Let S(x) be the predicate "x is a student",T(x) be the predicate "x is a teacher"and Q(x,y) be the predicate "x has asked y a question" where the domain consists of all people associated with the school. Use quantifiers to express the statement. "Some student ... ∀x∃y ( ( S(x) ∧ T(y) ) → Q(y,x) ) [ ¬P v Q = P→Q ] None of the options are matching .
Let S(x) be the predicate "x is a student",T(x) be the predicate "x is a teacher"and Q(x,y) be the predicate "x has asked y a question" where the domain consists of all p...
686
views
commented
Jan 23, 2019
Mathematical Logic
propositional-logic
quantifiers
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–
1
answer
21
SELF DOUBT: Korth DBMS, Relational Algebra Union Operation
Question:- a query to find the set of all courses taught in the Fall 2009 semester, the Spring 2010 semester, or both. Table given:- Given Relational Algebra expression:- Doubt:- If I write the relational Algebra expression as this ... then does it gives same output as they had given in terms of union The output is highlighted in image?
Question:- a query to find the set of all courses taught in the Fall 2009 semester, the Spring 2010 semester, or both. Table given:- Given Relational Algebra expression:-...
1.1k
views
asked
Jan 23, 2019
Databases
relational-algebra
databases
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–
3
answers
22
made easy subject test
answer is given 20,60 but my answer is 20,10 in solution they given that (&arr+1= base address of arr+ 1*6) how it possible . Is it true or wrong
answer is given 20,60but my answer is 20,10 in solution they given that (&arr+1= base address of arr+ 1*6) how it possible . Is it true or wrong
376
views
answered
Jan 23, 2019
1
answer
23
programming
what is the reason…..?for error..
what is the reason…..?for error..
325
views
answered
Jan 23, 2019
Programming in C
programming-in-c
programming
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–
1
answer
24
modified question
Each Process Pi, i = 1....91....9 is coded as follows while(TRUE) { P(mutex) {Critical section} V(mutex) } The code for P10 is while (TRUE) { v(mutex) {Critical section} p(mutex) } . What is the largest number of processes that can be inside the critical section at any moment? 1 2 3 10
Each Process Pi, i = 1....91....9 is coded as followswhile(TRUE) { P(mutex) {Critical section} V(mutex) }The code for P10 is while (TRUE) { v(mutex) {Critical section} p(...
504
views
answered
Jan 23, 2019
1
answer
25
How this output is obtained.
Output is 7. But can someone justify, how? #include <stdio.h> int f(int a, int b) { printf("%d", a + b); return 0; } int main() { f((2, 3), 4); return 0; }
Output is 7.But can someone justify, how?#include <stdio.h int f(int a, int b) { printf("%d", a + b); return 0; } int main() { f((2, 3), 4); return 0; }
355
views
commented
Jan 20, 2019
Programming in C
programming
programming-in-c
+
–
0
answers
26
How to solve such question.
$\frac{d}{dx}\int_{1}^{x^4} sect\space dt$
$$\frac{d}{dx}\int_{1}^{x^4} sect\space dt$$
440
views
commented
Jan 20, 2019
Calculus
calculus
integration
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–
1
answer
27
c programming Files
#include<stdio.h> int main() { FILE *fp[2]; if((fp[0]=fp[1]=fopen("test.txt","w"))!=NULL) //test.txt file should be empty during first compiling { fputs("one",fp[0]); fclose(fp[0]); fputs("two",fp[1]); ... is done after fputs("one",fp[0]); and fputs("two",fp[1]); can anyone tell me with explanation...please .
#include<stdio.h>int main(){ FILE *fp ; if((fp[0]=fp =fopen("test.txt","w"))!=NULL) //test.txt file should be empty during first compiling { fputs("one",...
466
views
commented
Jan 20, 2019
Programming in C
programming-in-c
output
programming
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–
0
answers
28
me test series
i have 1 doubt regarding the initialization of highlighted portion.Will the value of ’k’ change at each iteration or it will remain same (whatever value assigned to it during for loop initialization) ?
i have 1 doubt regarding the initialization of highlighted portion.Will the value of ’k’ change at each iteration or it will remain same (whatever value assigned to i...
359
views
commented
Jan 19, 2019
Programming in C
programming-in-c
for
loop
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–
1
answer
29
madeeasy-programming
explain the soln...why multiplying by 4 and [-2]?
explain the soln...why multiplying by 4 and [-2]?
260
views
answered
Jan 18, 2019
1
answer
30
MadeEasy Full Length Test 2019: Engineering Mathematics - Linear Algebra
538
views
answered
Jan 17, 2019
Linear Algebra
linear-algebra
engineering-mathematics
made-easy-test-series
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–
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