Shortest substring containing all characters in a set

Continuous Subarrays

Maximum Beauty of an Array After Applying Operation

Find Longest Special Substring That Occurs Thrice 2

Find Longest Special Substring That Occurs Thrice 1

Longest Substring with Same Letters after Replacement

Rotting Oranges

Count of Substrings Containing Every Vowel and K Consonants 1

Count Subarrays Where Max Element Appears at Least K Times

Count of Substrings Containing Every Vowel and K Consonants 2

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