Register

Recent questions tagged inversion

1 votes
1 answer
1
NPTEL Assignment Question
In an array A[1..n] of n distinct elements, if i < j and A[i] > A[j], then the pair (i,j) is called an inversion of A. How many inversions are there in the array A = {n,n-1,n-2,...,3,2,1}? n(n-1) / 2 n(n+1) / 2 2n(n+1) None
In an array A[1..n] of n distinct elements, if i < j and A[i] A[j], then the pair (i,j) is called an inversion of A.How many inversions are there in the array A = {n,n-1...
User Avatar
0 votes
0 answers
2
Cormen Edition 3 Exercise 2.4 Question 4 (Page No. 42)
Give an algorithm that determines the number of inversions in any permutation on $n$ elements in $\Theta (n\ lg\ n)$ worst-case time. (Hint: Modify merge sort.)
Give an algorithm that determines the number of inversions in any permutation on $n$ elements in $\Theta (n\ lg\ n)$ worst-case time. (Hint: Modify merge sort.)
User Avatar
0 votes
0 answers
3
Cormen Edition 3 Exercise 2.4 Question 3 (Page No. 42)
What is the relationship between the running time of insertion sort and the number of inversions in the input array? Justify your answer.
What is the relationship between the running time of insertion sort and the number of inversions in the input array? Justify your answer.
User Avatar
0 votes
1 answer
4
Cormen Edition 3 Exercise 2.4 Question 2 (Page No. 42)
What array with elements from the set $\{1,2,\dots n\}$ has the most inversions? How many does it have?
What array with elements from the set $\{1,2,\dots n\}$ has the most inversions? How many does it have?
User Avatar
0 votes
0 answers
7
Inversions
Is it always the case that in an unsorted array using comparison based sorting algorithm the minimum number of comparison required to convert it into sorted array is Equal to number of Inversions present in the Array. Am i saying the statement right ?
Is it always the case that in an unsorted array using comparison based sorting algorithm the minimum number of comparison required to convert it into sorted array is Equa...
User Avatar
0 votes
0 answers
8
Number of Inversions
How to get number of Inversion count using merge sort?
How to get number of Inversion count using merge sort?
User Avatar
0 votes
1 answer
9
Number of Inversions
A) 192 B) 120 c) 188 D) 176
A) 192 B) 120 c) 188 D) 176
User Avatar
To see more, click for the full list of questions or popular tags.