Problems library (weekly updates)

Question
Swap For Longest Repeated Character Substring
Maximum Level Sum of a Binary Tree
Last Substring in Lexicographical Order
Prime Arrangements
Maximum Subarray Sum with One Deletion
Make Array Strictly Increasing
Maximum Number of Balloons
Reverse Substrings Between Each Pair of Parentheses
K-Concatenation Maximum Sum
Remove All Adjacent Duplicates in String II
Minimum Cost to Move Chips to The Same Position
Longest Arithmetic Subsequence of Given Difference
Count Vowels Permutation
Split a String in Balanced Strings
Maximum Equal Frequency
Airplane Seat Assignment Probability
Replace the Substring for Balanced String
Tiling a Rectangle with the Fewest Squares
Minimum Swaps to Make Strings Equal
Count Number of Nice Subarrays
Check If It Is a Good Array
Greatest Sum Divisible by Three
Minimum Time Visiting All Points
Number of Ways to Stay in the Same Place After Some Steps
Count Square Submatrices with All Ones
Palindrome Partitioning III
Find the Smallest Divisor Given a Threshold
Minimum Number of Flips to Convert Binary Matrix to Zero Matrix
Element Appearing More Than 25% In Sorted Array
Sequential Digits