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Programming in C. Recursion.
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Previous GATE Questions in Programming and DS

62 votes
4 answers
141
GATE CSE 2015 Set 2 | Question: 17
Consider a complete binary tree where the left and right subtrees of the root are max-heaps. The lower bound for the number of operations to convert the tree to a heap is $\Omega(\log n)$ $\Omega(n)$ $\Omega(n \log n)$ $\Omega(n^2)$
Consider a complete binary tree where the left and right subtrees of the root are max-heaps. The lower bound for the number of operations to convert the tree to a heap is...
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35 votes
12 answers
143
GATE CSE 2015 Set 2 | Question: 10
A binary tree T has $20$ leaves. The number of nodes in T having two children is ______.
A binary tree T has $20$ leaves. The number of nodes in T having two children is ______.
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55 votes
7 answers
146
GATE CSE 1996 | Question: 4
A binary search tree is used to locate the number $43$ ...
A binary search tree is used to locate the number $43$. Which of the following probe sequences are possible and which are not? Explain.$\begin{array}{llllll} \text{(a)} ...
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27 votes
5 answers
147
GATE CSE 1996 | Question: 2.14
A binary search tree is generated by inserting in order the following integers: $50, 15, 62, 5, 20, 58, 91, 3, 8, 37, 60, 24$ The number of nodes in the left subtree and right subtree of the root respectively is $(4, 7)$ $(7, 4)$ $(8, 3)$ $(3, 8)$
A binary search tree is generated by inserting in order the following integers:$$50, 15, 62, 5, 20, 58, 91, 3, 8, 37, 60, 24$$The number of nodes in the left subtree and ...
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28 votes
3 answers
148
GATE CSE 1996 | Question: 2.11
The minimum number of interchanges needed to convert the array into a max-heap is $89, 19, 40, 17, 12, 10, 2, 5, 7, 11, 6, 9, 70$ $0$ $1$ $2$ $3$
The minimum number of interchanges needed to convert the array into a max-heap is$89, 19, 40, 17, 12, 10, 2, 5, 7, 11, 6, 9, 70$$0$$1$$2$$3$
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21 votes
3 answers
149
GATE CSE 1996 | Question: 1.15
Which of the following sequences denotes the post order traversal sequence of the below tree? $f\; e\; g\; c\; d\; b\; a$ $g\; c\; b\; d\; a\; f\; e$ $g\; c\; d\; b\; f\; e\; a$ $f\; e\; d\; g\; c\; b \;a$
Which of the following sequences denotes the post order traversal sequence of the below tree?$f\; e\; g\; c\; d\; b\; a$$g\; c\; b\; d\; a\; f\; e$$g\; c\; d\; b\; f\; e\...
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29 votes
3 answers
150
GATE CSE 1996 | Question: 1.14
In the balanced binary tree in the below figure, how many nodes will become unbalanced when a node is inserted as a child of the node “g”? $1$ $3$ $7$ $8$
In the balanced binary tree in the below figure, how many nodes will become unbalanced when a node is inserted as a child of the node “g”?$1$$3$$7$$8$
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39 votes
6 answers
151
GATE CSE 1996 | Question: 1.13
An advantage of chained hash table (external hashing) over the open addressing scheme is Worst case complexity of search operations is less Space used is less Deletion is easier None of the above
An advantage of chained hash table (external hashing) over the open addressing scheme isWorst case complexity of search operations is lessSpace used is lessDeletion is ea...
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25 votes
3 answers
153
GATE CSE 1995 | Question: 6
What is the number of binary trees with $3$ nodes which when traversed in post-order give the sequence $A, B, C ?$ Draw all these binary trees.
What is the number of binary trees with $3$ nodes which when traversed in post-order give the sequence $A, B, C ?$ Draw all these binary trees.
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49 votes
7 answers
156
GATE CSE 1995 | Question: 2.21
The postfix expression for the infix expression $A+B*(C+D)/F+D*E$ is: $AB + CD + *F/D +E*$ $ABCD + *F/DE* ++$ $A * B + CD/F *DE ++$ $A + *BCD/F* DE ++$
The postfix expression for the infix expression $A+B*(C+D)/F+D*E$ is:$AB + CD + *F/D +E*$$ABCD + *F/DE* ++$$A * B + CD/F *DE ++$$A + *BCD/F* DE ++$
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43 votes
6 answers
157
GATE CSE 1995 | Question: 1.17
A binary tree $T$ has $n$ leaf nodes. The number of nodes of degree $2$ in $T$ is $\log_2 n$ $n-1$ $n$ $2^n$
A binary tree $T$ has $n$ leaf nodes. The number of nodes of degree $2$ in $T$ is$\log_2 n$$n-1$$n$$2^n$
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29 votes
6 answers
159
GATE CSE 1994 | Question: 25
An array $A$ contains $n$ integers in non-decreasing order, $A[1] \leq A[2] \leq \cdots \leq A[n]$. Describe, using Pascal like pseudo code, a linear time algorithm to find $i, j,$ such that $A[i]+A[j]=a$ given integer $M$, if such $i, j$ exist.
An array $A$ contains $n$ integers in non-decreasing order, $A \leq A \leq \cdots \leq A[n]$. Describe, using Pascal like pseudo code, a linear time algorithm to find $...
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