1
GATE CSE 2016 Set 1
MCQ (Single Correct Answer)
+2
-0.6
$$G = (V,E)$$ 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?

$$\,\,\,\,\,\,\,\,\,\,{\rm I}.\,\,\,\,\,\,\,\,\,\,$$ If $$e$$ is the lightest edge of some cycle in $$G,$$ then every $$MST$$ of $$G$$
$$\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,$$includes $$e$$
$$\,\,\,\,\,\,\,\,{\rm I}{\rm I}.\,\,\,\,\,\,\,\,\,\,$$ If $$e$$ is the heaviest edge of some cycle in $$G,$$ then every $$MST$$ of $$G$$
$$\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,$$excludes $$e$$

A
$${\rm I}$$ only
B
$${\rm I}$$$${\rm I}$$ only
C
both $${\rm I}$$ and $${\rm II}$$
D
neither $${\rm I}$$ nor $${\rm I}$$$${\rm I}$$
2
GATE CSE 2016 Set 1
Numerical
+2
-0
Consider the weighted undirected graph with $$4$$ vertices, where the weight of edge $$\left\{ {i,j} \right\}$$ is given by the entry $${W_{ij}}$$ in the matrix $$W.$$ $$$W = \left[ {\matrix{ 0 & 2 & 8 & 5 \cr 2 & 0 & 5 & 8 \cr 8 & 5 & 0 & X \cr 5 & 8 & X & 0 \cr } } \right]$$$

The largest possible integer value of $$x,$$ for which at least one shortest path between some pair of vertices will contain the edge with weight $$x$$ is _________________.

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3
GATE CSE 2016 Set 1
Numerical
+1
-0
Consider the following code segment.
x = u - t;
y = x * v;
x = y + w;
y = t - z;
y = x * y;
The minimum number of total variables required to convert the above code segment to static single assignment form is .
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4
GATE CSE 2016 Set 1
Numerical
+2
-0
The attributes of three arithmetic operators in some programming language are given below.

Operator Precedence Associativity Arity
+ High Left Binary
_ Medium Right Binary
* Low Left Binary

The value of the expression $$2 - 5 + 1 - 7 * 3$$ in this language is _______________.

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