GATE CSE 2007 | Searching and Sorting Question 27 | Algorithms

GATE CSE 2007

MCQ (Single Correct Answer)

-0.3

Consider the DAG with $$V = \{1,2,3,4,5,6\}$$, shown below. GATE CSE 2007 Algorithms - Searching and Sorting Question 42 English

Which of the following is NOT a topological ordering?

1 2 3 4 5 6

1 3 2 4 5 6

1 3 2 4 6 5

3 2 4 1 6 5

GATE CSE 2007

MCQ (Single Correct Answer)

-0.3

Which of the following sorting algorithms has the lowest worst-case complexity?

Merge sort

Bubble sort

Quick sort

Selection sort

GATE CSE 2006

MCQ (Single Correct Answer)

-0.3

An element in an array X is called a leader if it is greater than all elements to the right of it in X. The best algorithm to find all leaders in an array

Solves it in linear time using a left to right pass of the array

Solves it in linear time using a right to left pass of the array

Solves it using divide and conquer in time $$\theta \left( {n\log n} \right)$$

Solves it in time $$\theta \left( {{n^2}} \right)$$

GATE CSE 2006

MCQ (Single Correct Answer)

-0.3

Which one of the following in place sorting algorithms needs the minimum number of swaps?

Quick sort

Insertion sort

Selection sort

Heap sort

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