Recent questions tagged space-complexity

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1

Space Complexity of Dijkastra's algorithm

asked Jul 5 in Algorithms by Hardik Maheshwari (59 points) | 72 views

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2

#Algorithms Space Complexity Vs Auxiliary Space Complexity?

asked Jun 26 in Algorithms by iarnav Loyal (7.4k points) | 25 views

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3

Space Complexity of Build Max Heap
Since Heapify is a recursive function, its space complexity is $O(logn)$ because of the stack space required for recursion. I also read that space complexity of heapsort is $O(1)$ beause of the explanation here - https://gateoverflow.in/79909/ ... complexity of build heap is $O(logn)$ then heapsorts complexity should also be the same . What am I missing here ?

asked Jun 14 in Algorithms by Hardik Maheshwari (59 points) | 29 views

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1 answer

4

Evaluation of Postfix expression using stack

asked May 6 in DS by JaiKumar Guwalani (11 points) | 175 views

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1 answer

5

Space complexity of Huffman coding
what is Space complexity of Huffman coding?

asked Apr 26 in Algorithms by Akash Kumar Roy (473 points) | 140 views

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1 answer

6

MY DOUBT: Worst case space complexity of Quick sort (NOT FOR A STRAIGHT ANSWER)

asked Apr 21 in DS by Akash Kumar Roy (473 points) | 96 views

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7

How large can the ratio of two memory requirements get?

asked Mar 3 in DS by XbrucewayneX (93 points) | 72 views

+3 votes

1 answer

8

Algorithms
I am having a doubt in this question. The binary search algorithm is implemented using recursion. Then the space complexity is :- (1) O( 1 ) (2) O( n ) (3) O( logn ) (4) O(n logn ) According to me, the answer should be option 2. Please explain the solution as well.

asked Jan 12 in Programming by Asim Abbas (225 points) | 91 views

+3 votes

2 answers

9

Space complexity
Worst case and best case space complexity of merge sort is ___________________________

asked Nov 11, 2017 in Algorithms by srestha Veteran (88.8k points) | 94 views

+2 votes

1 answer

10

How to determine the time complexity of this loop?

asked Nov 7, 2017 in Algorithms by Narasimhan (125 points) | 201 views

+5 votes

1 answer

11

In-place Merge Sort via Doubly linked list in place of Array

asked Nov 2, 2017 in Algorithms by Chhotu Boss (10.6k points) | 182 views

+2 votes

1 answer

12

Gatebook_Mocktest2(DS)
The intended purpose of this code is to precompute all the primes less than N. When it is finished executing, for r ∈ [2, N), bits[r] is supposed to equal 1 if and only if N is composite. Assume that the bits array is initialized to all zeroes. for ( int x = 2; x < N ... a natural number n < N is prime. (A) I only (B) I and II only (C) II and III only (D) I, II, and III

asked Feb 8, 2017 in DS by smartmeet Active (4.9k points) | 187 views

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13

GateBook Mock Test_2(Algorithms)
The intended purpose of this code is to precompute all the primes less than N. When it is finished executing, for r ∈ [2, N), bits[r] is supposed to equal 1 if and only if N is composite. Assume that the bits array is initialized to all zeroes. for ( int x = 2; x ... number n < N is prime. (A) I only (B) I and II only (C) II and III only (D) I, II, and III

asked Feb 7, 2017 in Algorithms by smartmeet Active (4.9k points) | 160 views

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1 answer

14

Space complexity
Which of the following algorithm have the smallest memory requirement i.e Low space complexity including data space and run time stack for recursive calls. A)insertion sort B)quick sort C)merge sort D)selection sort

asked Feb 5, 2017 in Programming by reena_kandari Loyal (7.5k points) | 241 views

+3 votes

1 answer

15

Project Euler Problem 1
What is the Time and Space Complexity of Both the Codes ? Are both O(1)? If so why? And then how is the second more efficient? Below is the code in Brute Force for(i=0;i<1000;i++) { if(i%3==0 || i%5==0) { sum+=i; } } This is Using Summation int P1(int n) { int t,x,f; t=(n-1)/3; x=(n-1)/5; f=(n-1)/15; return((3*t*(t+1)/2) + (5*x*(x+1)/2) - (15*f*(f+1)/2)); }

asked Jan 28, 2017 in Algorithms by sripo (49 points) | 100 views

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16

Algorithms [Euclid's Algorithm for GCD]
What is the best case and worst case time complexity for Euclid's algorithm?Let numbers be a and b As per my understanding Best case - If a and b are multiple :0(1). Worst case - Both are consecutive fibonicci number.Complexity?

asked Dec 8, 2016 in Algorithms by rahul sharma 5 Boss (24.3k points) | 225 views

+5 votes

2 answers

17

Space complexity of heap sort
Why space complexity of heapsort is O(1)....and why not O(logn)..because of space required by recursion calls which is equivalent to height of the tree...where am i getting wrong plz help...

asked Nov 7, 2016 in Algorithms by vineet.ildm Active (1.1k points) | 825 views

+6 votes

2 answers

18

Test Series
Which algorithm has smallest memory requirement in terms of data space and runtime stack(for recursive calls)? (Low Space Complexity) A. Insertion sort B. Selection sort C. Quick Sort D. Merge Sort

asked Nov 3, 2016 in Algorithms by parthbkgadoya (327 points) | 337 views

+4 votes

1 answer

19

Space Complexity of sorting

asked Oct 19, 2016 in Algorithms by KISHALAY DAS Loyal (6.5k points) | 421 views

0 votes

1 answer

20

BFS Theory
1. Does space complexity includes both input space and extra space needed for algorithm or only extra space? 2.What will be Space complexity for BFS algorithm with adjacency matrix representation? Please reply with supporting references.

asked Oct 12, 2016 in Algorithms by Shyam Singh 1 Active (1.5k points) | 206 views

0 votes

2 answers

21

Find the Space complexity of following Code [Ace Gate Practice Booklet Vol-1 Page 127]

asked Jun 2, 2016 in Algorithms by APOORV PANSE (165 points) | 549 views

+1 vote

1 answer

22

GEEK_MOCK_QUETION_14
QUESTION 14 : Consider the below Pseudo code written in C style bool fun(int arr[], int n, int X) { if (X == 0) return true; if (n == 0 && X != 0) return false; if (arr[n–1]*arr[n–1] > X) return fun(arr ... n) extra space D) Time Complexity of fun() is O(n2) and it requires O(n2) extra space Correct – A How to calculate space complexity?

asked Jan 26, 2016 in Algorithms by Sumit1311 Active (1.5k points) | 325 views

+5 votes

1 answer

23

What is the time complexity?
double foo(int n) { int i; double sum; if(n == 0) { return 1.0; } else { sum = 0.0; for(i = 0; i < n; i++) { sum += foo(i); } return sum; } } The time complexity of the above code is?

asked Aug 29, 2014 in Algorithms by Arjun Veteran (352k points) | 508 views

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