big-o
Big O Running Time for different Data Strucutres
I\'ve tried to come up with the Big O Running time of the following data structures. Are they Correct?[详细]
2023-03-27 12:15 分类:问答Big O when adding together different routines
Lets say I have a routine that scans an entire list of n items 3 times, does a sort based on the size, and then bsearches that sorted list n times.The scans are O(n) time, the sort I will call O(n log[详细]
2023-03-27 03:58 分类:问答Big O notation For accessing middle element in linked list and binary search?
Article at http://leepoint.net/notes-java/algorithms/big-oh/bigoh.html says that Big O notation For accessing middle element in linked list is O(N) .should not it be O(N/2) .Assume we have 100 element[详细]
2023-03-26 06:45 分类:问答Will Redis's sorted sets scale?
This may be more of a theoretical question but I\'m looking for a pragmatic answer. I plan to use Redis\'s Sorted Sets to store the ranking of a model in my database based on a calculated value. Curr[详细]
2023-03-26 04:35 分类:问答What is performance of ContainsKey and TryGetValue?
I\'m prepping for interviews, and some obvious interview questions such as counting frequency of characters in a string involve putting all of the characters into a Hashtable/Dictionary in order to ge[详细]
2023-03-26 04:00 分类:问答Is there a Sorting Algorithm that sorts in O(∞) permutations?
After reading this question and through the various Phone Book sorting scenarios put forth in the answer, I found the concept of the BOGO sort to be quite interesting.Certainly there is no use for thi[详细]
2023-03-25 03:41 分类:问答On the efficiency of tries and radix sort
Radix sort\'s time complexity is O(kn) where n is the number of keys to be sorted and k is the key length. Similarly, the time complexity for the insert, delete, and lookup operations in a trie is O(k[详细]
2023-03-23 22:46 分类:问答Big O Speed of Removing Duplicates from Linked List Without Buffer
The开发者_Python百科 approach I\'m referring to is the dual-pointer technique.Where the first pointer is a straightforward iterator and the second pointer goes through only all previous values relativ[详细]
2023-03-23 10:23 分类:问答What does Θ(deg(u)) mean?
I have never heard this before, or maybe I have heard it in other terms? The context is that for adjacency lists, the time to list all vertices adjacent to u is Θ(deg(u)).[详细]
2023-03-22 23:48 分类:问答Why is this code considered O(N^6) in Big Oh notation?
I was just reading another question and this code intrigued me: for(i = 0; i < n; i++) { for(j = 0; j < i*i; j++)[详细]
2023-03-22 09:24 分类:问答