Published onJune 6, 2022[Rails] Locking Records for UpdateRubyLocking is helpful for preventing race conditions when updating records in the database and ensuring atomic updates.
Published onJune 5, 2022[Rails] Single Table InheritanceRubySometimes, you may want to share fields and behavior between different models.
Published onJune 3, 2022[LeetCode 300] Longest Increasing SubsequenceDynamicProgrammingincreasing subsequence.