Change the dir structure slightly

src/builtin_structures/find_edit_distance.py

@@ -1,43 +0,0 @@
-#!/usr/bin/env python
-
-__author__ = "bt3"
-
-
-''' computes the edit distance between two strings '''
-
-
-def find_edit_distance(str1, str2):
-    '''
-    >>> s = 'sunday'
-    >>> t = 'saturday'
-    >>> find_edit_distance(s, t)
-    3
-    '''
-
-	m = len(str1)
-	n = len(str2)
-	diff = lambda c1, c2: 0 if c1 == c2 else 1
-
-	E = [[0] * (n + 1) for i in range(m + 1)]
-
-	for i in range(m + 1):
-		E[i][0] = i
-
-    for j in range(1, n + 1):
-		E[0][j] = j
-
-    for i in range(1, m + 1):
-		for j in range(1, n + 1):
-			E[i][j] = min(E[i-1][j] + 1, E[i][j-1] + 1, E[i-1][j-1] + diff(str1[i-1], str2[j-1]))
-
-    return E[m][n]
-
-
-
-if __name__ == '__main__':
-    import doctest
-    doctest.testmod()
-
-
-
-