L -124 Longest substring of K unique elements | Java DSA Placement | FAANG | GFG

Problem Name:
Longest K unique characters substring
Problem Statement:
Given a string you need to print the size of the longest possible substring that has exactly K unique characters. If there is no possible substring then print -1.
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[@PradeepKumarIIITD]

Hi shashwat, these all are wonderful lessons, I know its dimotivating to see less views on tutorial videos, but this is gold mine.. not sure how u r keeping yourself motivated.. wonderful videos

[@subhasishnayak5979]

Awesome content yaar

[@cat_therepy]

This channel is like a hc verma in physic