Questions tagged [search]

This tag is for questions about search algorithms, tools, and technologies.

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7 views

Approximation search localization algorithm implementation

This is a first draft Python port of an approximation search localization algorithm originally written in C++. The code produces ...
1
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1answer
72 views

Search by parts of Arabic word on JSON

I've just implemented a search box, so I can search on employee object by (name, part of the name, phone, email ...). Ex. if the name: Moamen Abdulraouf Mansour, I can search with ( moamen | moa | ...
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2answers
177 views

Sum of 2 numbers in an array [closed]

I have this problem to solve: Given an integer \$z\$ and an array \$a\$ of distinct integers sorted in ascending order, find two numbers, \$x\$ and \$y\$, belonging to the array such that \$x + y = z\...
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0answers
35 views

Trie to index files and search for them

Basic idea (foo and foa are filenames): ...
2
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1answer
63 views

How to sort and search in JavaScript large set

The array "scores" tells the total points for each person involved in a contest. So for example: ...
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1answer
53 views

recursive file search, C , linux

hi guys this script recursively searches for files with a certain extension and possibly in a directory passed by the terminal ....(In case no directory has been passed, search from the current one) I ...
2
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2answers
74 views

Basic binary search in python

I just started learning to code during quarantine and whilst learning python, I created this program for a binary search. This is really basic so I assume that there is a way easier method. If anyone ...
2
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1answer
65 views

Searching in Multidimensional Array

I was wondering about the Array built in methods in java 8. As there is no specific method other than Arrays.binarySearch. So for multidimensional array I wrote ...
2
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2answers
66 views

Run dir scan as fast and efficient as possible / clean code

I'm not a very experience python programmer. But I want to make my code as fast and efficient as possible as well as write it clean and therefore got the advice to share it here. So I'm having the ...
3
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1answer
40 views

Brute-force electronic component selection space search

Yesterday I hacked up a simple component selection program. An example is shown at the bottom for the application, though this can be used generally for a lot of different simple circuits I come ...
1
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1answer
80 views

Performance: Use plain for loops to look for (existence of) string in string array?

I timed a few ways to look for a string in a string array (with 82 elements in the example) in a case sensitive manner plus ignoring case. I am kind of suprised, that the plain for loops are faster ...
3
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1answer
149 views

Elegant Method for Sleeping with Selenium Webscraper

My goal is to scrape the no. 1 suggestion of the suggestion list on https://finance.yahoo.com for any entry. If there is no suggestion the code should write ...
4
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2answers
81 views

Search engine that looks through files

For my programming class, at the start of the semester before we learned about object oriented coding, I was supposed to make a small program that searches through a bunch of files, being graded on ...
2
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2answers
116 views

Searching within a data model using an array matching multiple terms

I have a standard tableview app that displays information from a data model array that uses a custom class. There is a UISearchController to filter the data. A ...
2
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1answer
56 views

Is this breadth-first search correct?

I wrote a program that is supposed to be a breadth-first search algorithm, but I'm very new to search algorithm so I don't know if my method is very effective or if there is a simpler way to do this. ...
7
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1answer
126 views

Boyer Moore Horspool Search Algorithm in Go

I am practicing Go and try to implement Boyer Moore Horspool Algorithm in Go, It returns all ocurrance of a "phrase" in a given text. This code is working, but I would be pleased to have any feedback ...
3
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3answers
68 views

Find a String in an Array

This program is used to get names and numbers of N person, print out the numbers of a person. Please help me improve this code. Additional Question: To avoid a very long name that exceeds char's ...
1
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1answer
95 views

Check if is it possible to get to a point that is presented by a number [closed]

Problem description from an Iranian online course, translated with the help of Google Translate: Tired of coding, Mehdi has gone on to his childhood games. But because he doesn't know who to play ...
4
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1answer
76 views

Comparing game tree search AI algorithms in Java

(The entire project lives here.) I have a program that benchmarks three game tree search algorithms: Minimax, Alpha-beta pruning, Alpha-beta pruning with move ordering. So here is my code: ...
9
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5answers
230 views

Stream text scanning

I've written some utilities to read text from streams. One of these, the ReadTo method, is to read text from a specified stream until a given text is encountered, ...
1
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0answers
95 views

Fast text search in Rust

I have a large file that I want to search for text as fast as possible. There is not a memory contraint, so I am loading the entire file into memory so that I can use the rayon parallelism crate in ...
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1answer
36 views

How can I make my filter search code more efficient?

Here is App.js ...
6
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2answers
870 views

Javascript - Find a deepest node in a binary tree

Problem Statement Given the root of a binary tree, return a deepest node. For example, in the following tree, return d. a / \ b c / d My ...
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4answers
214 views

C-based hash matching cracker

How can I improve this hash matching program using either abstraction or search/sort algorithms? We briefly were introduced to searching methods such as bubble sort and merge sort, but I'm not sure ...
3
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1answer
140 views

String.IndexOfAny(string, string[]) (lowest position for group of needles in haystack)

This is a follow-up to this question with bug fixes, question and code improvements from @dfhwze, @PieterWitvoet, @HenrikHansen, @t3chb0t. I am still hoping for an improved approach or algorithm ...
2
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2answers
429 views

Best C# implementation of IndexOfAny(string, params string[])

Follow-Up question .Net provides String.IndexOfAny(string, char[]) but not String.IndexOfAny(string, string[]). The existing ...
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1answer
69 views

Inventory system codebase

I'm here looking for a review over my current code-base. Please: Ignore using namespace std; this is for educational purposes mostly so the usage of using namespace std; does not matter for this ...
6
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3answers
838 views

Java TreeMap.floorKey() equivalent for std::map

I wanted something equivalent to this Java program: ...
5
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0answers
199 views

Rabin-Karp algorithm implementation

This code uses the Rabin-Karp algorithm to compare two text files. It takes a few minutes when both files contain around 1000 words. How can it be improved? ...
4
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1answer
157 views

Enhancing search using Fuzzy Logic in NodeJS

Brief Description: In my NodeJS Application, I have a model called User. User.js ...
3
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0answers
70 views

reverse recursive search on an object with javascript - like tree search

I implemented a tree search with JavaScript. It has below basic rules. It will search over an array of objects which has recursive(like fractal) If it found a according data in a leaf(the final ...
4
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1answer
92 views

Preperiodic, periodic or aperiodic binary string

This is extension of the rep-string task from Rosette code. I do not only want to check if the input string is the shortest periodic string (rep-string) or not, but also check if it is preperiodic. ...
4
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1answer
64 views

Python log entry search utility

I wrote a small utility for searching our web app log files for certain strings. The idea is that if the search string is found somewhere in the entry, the entire entry should be printed. The ...
4
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1answer
140 views

Filter for CANbus frames

The actual data types here are probably not relevant to post an answer. I use Qt types here, but the question should apply for other structured types as well. I ...
4
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1answer
390 views

Knuth-Morris-Pratt algorithm in C++

First of all, I know there is huge amount of information about KMP on the internet but many examples are just the code without any explanation. So I've decided to implement it on my own. Secondly, I ...
0
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0answers
90 views

Dictionary search: compare many values in a dictionary using keys

What I have: Mainly, a graph consists of 10000 nodes and around 500000 edges. I would like to construct a dictionary where keys are the edges and the value for each edge is an array consists of 0, ...
2
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1answer
49 views

Primitive full-text search on some properties of an object

I am not a JS/TS Guru, so i wanted to ask if one could write this better. I needed a very primitive Full-Text-Search of some properties of an Object. What do you think? ...
0
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1answer
72 views

Combinational string search using Java

I wrote a program that receives 2 strings (Input and Search) in the Search string. The sign '+' indicates that if the substring before the '+' exists in the Input string. (The search string cannot ...
4
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0answers
60 views

Array Search Algorithm

Recently, I've been experimenting with an array searching algorithm that I'm not sure I've seen anywhere (minor references here). I'm still not fully-learned on how to state the efficiency of what I'...
6
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2answers
3k views

Find a best fuzzy match for a string

I am trying to find a best match for a name within a list of names. I came up with the below code, which works, but I feel that the creation of the intermediate ...
2
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0answers
188 views

String search function in typescript/angular

I'm trying to return a list of objects called orders based on a string search that the user enters. orders has a ...
3
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2answers
54 views

Listing the playlists on which each song appears

I created a way to export my Google Play playlists to a text file and also a way to export all of my songs in Google Play to a text file. Now I have both the song list (in an array format) and ...
1
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2answers
130 views

Calculating the minimum and maximum of a byte array [closed]

I've been working with binary files with this last assignment and part of it was to determine the maximum and minimum byte. Initially this was 2 functions but a bonus portion was to make them into 1 ...
2
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1answer
62 views

Locate substrings within a file

Here, I am reading in a newline delimited file that can be millions of repeating lines that looks like this: ...
1
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1answer
78 views

PHP code for search page

Want to show you part of code that I wrote to process search request. User commit search by articles (codes) of products. The goal is to allow user write his search request to textarea element in any ...
4
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0answers
83 views

Improved Knuth-Morris-Pratt over a source of indeterminate length

Following the successful review of my previous implementation. Please review my new, generic implementation of the Knuth-Morris-Pratt algorithm. Its modified to search a source of indeterminate ...
5
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2answers
109 views

Knuth-Morris-Pratt over a source of indeterminate length

Please review my generic implementation of the Knuth-Morris-Pratt algorithm. Its modified to search a source of indeterminate length in a memory efficient fashion. ...
3
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2answers
781 views

Go grep command clone

I am trying to make a simple clone of the command line utility grep. I'm working on it just for fun and to practice Go. The thing is, I am trying to make it in a way that if several files are given at ...
2
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1answer
175 views

Scheme: FSM substring search

I have been working on a function that return a FSM that searches a specific word based on the argument of the constructor. The idea was to use those routines as means to learn about regular ...
4
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1answer
54 views

Search indexing of Battle Mech Loadouts

Background I am since a long time ago developing a JavaFX application for creating and analysing 'Mech loadouts for Mechwarrior Online. I previously had a very crude search function based on a ...

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