Databases
StackOverflow2013
Postsdbo
POGet number of different chars between two strings allowing a defined number of differences
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POGet number of different chars between two strings allowing a defined number of differences
    primarykey
    data
    text
    <p>I want a method that receives as input <code>two char arrays</code>, and an integer <code>d</code> which represents a max of differences between chars in both arrays and return true or false depending on if arrays are similar differing at most with d chars</p> <p>so for example</p> <p>Having </p> <pre><code>char[] a1 = { 's', 't', 'a', 'f', 'f' }; char[] a2 = { 's', 't', 'a', 'c', 'k' }; </code></pre> <p>and having d=2 would return true because those arrays are almost similar</p> <p>I was thinking on making a for loop and comparing each char and having a counter of maxDiference and if the counter exceeds return false like:</p> <pre><code>using System; using System.Collections.Generic; using System.Text; using System.Linq; namespace auxros { class Program { static void Main(string[] args) { char[] a1 = { 's', 't', 'a', 'f', 'f' }; char[] a2 = { 's', 't', 'a', 'c', 'k' }; bool areDifferent = CharMismatches(a1, a2, 1); System.Console.WriteLine("The arrays are diferent at most by one char? " + areDifferent); areDifferent = CharMismatches(a1, a2, 2); System.Console.WriteLine("The arrays are diferent at most by two chars? " + areDifferent); areDifferent = CharMismatches(a1, a2, 3); System.Console.WriteLine("The arrays are diferent at most by three chars? " + areDifferent); } static bool CharMismatches(char[] a1, char[] a2, int d) { int mismatches = 0; for (int i = 0; i &lt; a1.Length; i++) { if (!a1[i].Equals(a2[i])) { mismatches++; } if (mismatches == d) { return true; } } if (mismatches &lt;= d) { return false; } return true; } } } </code></pre> <p>Is there a more efficient way to do this?</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USJohn Saunders
    1. UScMinor
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POGet number of different chars between two strings allowing a defined number of differences
      1. This table or related slice is empty.
      1. VTUpMod
    1. COI have edited your title. Please see, "[Should questions include “tags” in their titles?](http://meta.stackexchange.com/questions/19190/)", where the consensus is "no, they should not".
      singulars
      1. POGet number of different chars between two strings allowing a defined number of differences
      1. USJohn Saunders
    2. CO`if (mismatches <= d){return false;}return true;` This part is redundant, just need `return false;`.
      singulars
      1. POGet number of different chars between two strings allowing a defined number of differences
      1. USHamlet Hakobyan
    3. CO@cMinor, what should be the behavior when char[] a1 = { 'k', 'c' ,'a', 't', 's',};char[] a2 = { 's', 't', 'a', 'c', 'k' };, Are you trying to compare char at same index only?
      singulars
      1. POGet number of different chars between two strings allowing a defined number of differences
      1. USSameer
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload