EDIST - Edit distance


You are given two strings, A and B. Answer, what is the smallest number of operations you need to
transform A to B?

Operations are:

  1. Delete one letter from one of strings
  2. Insert one letter into one of strings
  3. Replace one of letters from one of strings with another letter

Input

T - number of test cases

For each test case:

  • String A
  • String B

Both strings will contain only uppercase characters and they won't be longer than 2000 characters. 

There will be 10 test cases in data set.

Output

For each test case, one line, minimum number of operations.

Example

Input:
1
FOOD
MONEY

Output:
4

hide comments
monukumar: 2017-06-22 17:55:15

same code accepted in c++ , WA in Java.

arvind002: 2017-05-27 13:16:55

Great problem!! Declare a global array , it will save you a wrong answer :)

sagnik_66: 2017-05-22 17:53:23

Learnt something new :D

bmay: 2017-05-20 16:25:46

For Python, use PyPy 2.6.0

ssunitk: 2017-05-18 17:08:23

Please make sure that ur array for both a and b should be of size 2001 , in case of 2000 it will show wrong answer .
Costed me 2 WA ...

sandeep_4141: 2017-05-16 05:04:19

After lot's of effort, finally AC !!

bazinga012: 2017-05-12 23:23:09

Taking string input using cin.getline gives WA used scanf with %s and it worked. What is the reason??

bazinga012: 2017-05-12 23:11:15

Getting WA. Can anyone give edge cases. Tried everything got accept on two other portals with same algo.

rknguyen: 2017-05-02 05:08:43

:lol: i solved MBLAST first :v

Last edit: 2017-05-02 05:18:56
ramesh_961: 2017-04-27 14:26:48

Then what is the output for "AGGTAB" and "GXTXAYB" ??
and Is LCS concept useful here??


Added by:Mislav Balunović
Date:2010-02-28
Time limit:15s
Source limit:50000B
Memory limit:1536MB
Cluster: Cube (Intel G860)
Languages:All except: NODEJS OBJC PERL6 SQLITE VB.NET
Resource:Internet