Edit Distance
Medium Accuracy: 49.98% Submissions: 45822 Points: 4

Given two strings s and t. Return the minimum number of operations required to convert to t.
The possible operations are permitted:

  1. Insert a character at any position of the string.
  2. Remove any character from the string.
  3. Replace any character from the string with any other character.


Example 1:

s = "geek", t = "gesek"
Output: 1
Explanation: One operation is required 
inserting 's' between two 'e's of str1.

Example 2:

Input : 
s = "gfg", t = "gfg"
Explanation: Both strings are same.


Your Task:
You don't need to read or print anything. Your task is to complete the function editDistance() which takes strings s and t as input parameters and returns the minimum number of operation to convert the string s to string t

Expected Time Complexity: O(|s|*|t|)
Expected Space Complexity: O(|s|*|t|)

1 ≤ Length of both strings ≤ 100
Both the strings are in lowercase.

We are replacing the old Disqus forum with the new Discussions section given below.
Click here to view old Disqus comments.

to report an issue on this page.


We strongly recommend solving this problem on your own before viewing its editorial. Do you still want to view the editorial?


All Submissions

My Submissions:

Login to access your submissions.

Edit Distance

Output Window