1
GATE CSE 2014 Set 3
MCQ (Single Correct Answer)
+1
-0.3
Let A be a square matrix size $$n \times n$$. Consider the following pseudocode. What is the expected output?
C = 100;
for i = 0 to n do
for j = 1 to n do
{
Temp = A[ i ][ j ] + C ;
A[ i ][ j ] = A[ j ][ i ] ;
A[ j ][ i ] = Temp - C ;
}

for i = 0 to n do
for j = 1 to n do
output(A[ i ][ j ]);
A
The matrix A itself
B
Transpose of the matrix A
C
Adding 100 to the upper diagonal elements and subtracting 100 from lower diagonal elements of A
D
None of these
2
GATE CSE 2014 Set 3
MCQ (Single Correct Answer)
+1
-0.3
In the context of modular software design, which one of the following combinations is desirable?
A
High cohesion and high coupling
B
High cohesion and low coupling
C
Low cohesion and high coupling
D
Low cohesion and low coupling
3
GATE CSE 2014 Set 3
Numerical
+1
-0
The length of the shortest string NOT in the language (over $$\sum { = \left\{ {a,\,\,b} \right\}}$$) of the following regular expression is ____________. $$a{}^ * b{}^ * \left( {ba} \right){}^ * a{}^ *$$\$
Your input ____
4
GATE CSE 2014 Set 3
MCQ (Single Correct Answer)
+2
-0.6
Consider the following languages over the alphabet $$\sum { = \left\{ {0,\,1,\,c} \right\}:}$$
\eqalign{ & {L_1} = \left\{ {{0^n}\,{1^n}\,\left| {n \ge } \right.0} \right\} \cr & {L_2} = \left\{ {wc{w^r}\,\left| {w \in \left\{ {0,\,1} \right\}{}^ * } \right.} \right\} \cr & {L_3} = \left\{ {w{w^r}\,\left| {w \in \left\{ {0,\,1} \right\}{}^ * } \right.} \right\} \cr}

Here, $${w^r}$$ is the reverse of the string $$w.$$ Which of these languages are deterministic Context- free languages?

A
None of the languages
B
$$(B)$$ Only $${L_1}$$
C
Only $${L_1}$$ and $${L_2}$$
D
All the three languages.
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