Algo#48: Find minimum window length which accommodate all given character.

Given problem is purely string manipulation problem. Here we have to find minimum window length which accommodate all given character for second string.

E.g. Given string ABBACBAA, and if we want to find minimum window length which can accommodate "AAA", it will be 5 (index 3 to 7). "CCC" should return MAX length as no window in original string can accommodate "CCC".

Following is implementation of above algorithm in c language.

Please write comments if you find anything wrong or you want to add something more related to this topic.