Users Online

· Guests Online: 93

· Members Online: 0

· Total Members: 188
· Newest Member: meenachowdary055

Forum Threads

Newest Threads
No Threads created
Hottest Threads
No Threads created

Latest Articles

C++ Program to Implement Levenshtein Distance Computing Algorithm

C++ Program to Implement Levenshtein Distance Computing Algorithm

 

This is a C++ Program to find Levenshtein Distance. The Wagner–Fischer algorithm is a dynamic programming algorithm that measures the Levenshtein distance between two strings of characters.
For example, the Levenshtein distance between “kitten” and “sitting” is 3, since the following three edits change one into the other, and there is no way to do it with fewer than three edits:

 

Here is source code of the C++ Program to Implement Levenshtein Distance Computing Algorithm. The C++ program is successfully compiled and run on a Linux system. The program output is also shown below.

  1. #include <stdio.h>
  2. #include <math.h>
  3. #include <string.h>
  4. int d[100][100];
  5. #define MIN(x,y) ((x) < (y) ? (x) : (y))
  6. int main()
  7. {
  8.     int i,j,m,n,temp,tracker;
  9.     char s[] = "Sanfoundry";
  10.     char t[] = "Education";
  11.     m = strlen(s);
  12.     n = strlen(t);
  13.  
  14.     for(i=0;i<=m;i++)
  15.     d[0][i] = i;
  16.     for(j=0;j<=n;j++)
  17.     d[j][0] = j;
  18.  
  19.     for (j=1;j<=m;j++)
  20.     {
  21.         for(i=1;i<=n;i++)
  22.         {
  23.             if(s[i-1] == t[j-1])
  24.             {
  25.                 tracker = 0;
  26.             }
  27.             else
  28.             {
  29.                 tracker = 1;
  30.             }
  31.             temp = MIN((d[i-1][j]+1),(d[i][j-1]+1));
  32.             d[i][j] = MIN(temp,(d[i-1][j-1]+tracker));
  33.         }
  34.     }
  35.     printf("the Levinstein distance is %d\n",d[n][m]);
  36.     return 0;
  37. }

Output:

$ g++ LevenshteinDist.cpp
$ a.out
 
the Levinstein distance is 9
 
------------------
(program exited with code: 0)
Press return to continue

 

Comments

No Comments have been Posted.

Post Comment

Please Login to Post a Comment.

Ratings

Rating is available to Members only.

Please login or register to vote.

No Ratings have been Posted.
Render time: 1.19 seconds
10,830,962 unique visits