ENTRANCE EXAM

CodeChefOpen on judge ↗

Vinod was taking an entrance exam ,In which he is given a string $s$ and a number $k$,he have to print total number of substrings of $s$ that have a length of $k$ and are composed of unique characters. Vinod is confuse how to solve this problem ,he need your help. ### Input - The first line of input is a single integer representing the number of test cases. - Each test case consists of single li

HINT LADDERno hints yet

L1 Observation

L2 Technique

L3 Approach

L4 Pseudo-code

🔒

L5 Full solution

L5 unlocks only if you insist twice

solution.cppC++17

CodeSearch Tutor

Hints, not spoilers — it won’t hand over the full solution unless you insist.

voice by Sarvam AI