String window , conceptual doubt

#1

i was going through someone others code and i didn’t understood it,
can any one please explain it to me in detail

#2

Please provide the code in Coding Blocks IDE.

#3

sir i have conceptual doubt how to go ahead in this problem , i mean what approach should be used

#4

@vikashkmr519 to solve this problem you can use hash_map store the pattern in a hash_map,
1.Start matching the characters of pattern with the characters of string i.e. increment count if a character matches
Check if (count == length of pattern ) this means a window is found
2.If such window found, try to minimize it by removing extra characters from beginning of current window.
3.Update min_length
Print the minimum length window.

#5

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