how to run a algorithm on a separate thread while updating a progressBar
来源： https://stackoverflow.com/questions/64618494/how-to-run-a-algorithm-on-a-separate-thread-while-updating-a-progressbar
linear-search
Where to choose linear search over binary search
问题 After having searched the internet I was not able to satisfy myself that I had found a comprehensive set of situations in which a linear search would be preferable to a binary search. I am essentially wondering whether it would be possible to compile a relatively definitive list of advice (from the point of view of general programming as one might find in industry). Alternatively I would much appreciate it if it could be verified that indeed I have seen all there is to say on the subject. 回答1
binary search efficiency vs. linear search efficiency in fortran
问题 This question is about the efficiency of a linear search vs. the efficiency of a binary search for a pre-sorted array in contiguous storage... I have an application written in fortran (77!). One frequent operation for my part of the code is to find the index in an array such that gx(i) <= xin < gx(i+1) . I've currently implemented this as a binary search -- sorry for the statement labels and goto -- I've commented what the equivalent statments would be using fortran 90... i=1 ih=nx/2 201
What's the point of using linear search with sentinel?
问题 My goal is to understand why adopting linear search with sentinel is preferred than using a standard linear search. #include <stdio.h> int linearSearch(int array[], int length) { int elementToSearch; printf("Insert the element to be searched: "); scanf("%d", &elementToSearch); for (int i = 0; i < length; i++) { if (array[i] == elementToSearch) { return i; // I found the position of the element requested } } return -1; // The element to be searched is not in the array } int main() { int
Where to choose linear search over binary search
After having searched the internet I was not able to satisfy myself that I had found a comprehensive set of situations in which a linear search would be preferable to a binary search. I am essentially wondering whether it would be possible to compile a relatively definitive list of advice (from the point of view of general programming as one might find in industry). Alternatively I would much appreciate it if it could be verified that indeed I have seen all there is to say on the subject. My list of reasons for choosing a linear search over a binary search are as follows: The list is unsorted
How fast can you make linear search?
问题 I'm looking to optimize this linear search: static int linear (const int *arr, int n, int key) { int i = 0; while (i < n) { if (arr [i] >= key) break; ++i; } return i; } The array is sorted and the function is supposed to return the index of the first element that is greater or equal to the key. They array is not large (below 200 elements) and will be prepared once for a large number of searches. Array elements after the n-th can if necessary be initialized to something appropriate, if that
How fast can you make linear search?
I'm looking to optimize this linear search: static int linear (const int *arr, int n, int key) { int i = 0; while (i < n) { if (arr [i] >= key) break; ++i; } return i; } The array is sorted and the function is supposed to return the index of the first element that is greater or equal to the key. They array is not large (below 200 elements) and will be prepared once for a large number of searches. Array elements after the n-th can if necessary be initialized to something appropriate, if that speeds up the search. No, binary search is not allowed, only linear search. Edit : All my knowledge
binary search efficiency vs. linear search efficiency in fortran
This question is about the efficiency of a linear search vs. the efficiency of a binary search for a pre-sorted array in contiguous storage... I have an application written in fortran (77!). One frequent operation for my part of the code is to find the index in an array such that gx(i) <= xin < gx(i+1) . I've currently implemented this as a binary search -- sorry for the statement labels and goto -- I've commented what the equivalent statments would be using fortran 90... i=1 ih=nx/2 201 continue !do while (.true.) if((xin.le.gx(i)).and.(xin.gt.gx(i+1)))then !found what we want ilow=i+1; ihigh
What is the difference between Linear search and Binary search?
What is the difference between Linear search and Binary search? A linear search looks down a list, one item at a time, without jumping. In complexity terms this is an O(n) search - the time taken to search the list gets bigger at the same rate as the list does. A binary search is when you start with the middle of a sorted list, and see whether that's greater than or less than the value you're looking for, which determines whether the value is in the first or second half of the list. Jump to the half way through the sublist, and compare again etc. This is pretty much how humans typically look
What is the difference between Linear search and Binary search?
问题 What is the difference between Linear search and Binary search? 回答1: A linear search looks down a list, one item at a time, without jumping. In complexity terms this is an O(n) search - the time taken to search the list gets bigger at the same rate as the list does. A binary search is when you start with the middle of a sorted list, and see whether that's greater than or less than the value you're looking for, which determines whether the value is in the first or second half of the list. Jump