1Largest Magic SquareMediumArrayMatrixPrefix Sum
Solve → 2Group AnagramsMediumArrayHash TableString
Solve → 3Best Sightseeing PairMediumArrayDynamic Programming
Solve → 4Alert Using Same Key-Card Three or More Times in a One Hour PeriodMediumArrayHash TableString
Solve → 5Sliding Window MaximumHardArrayQueueSliding Window
Solve → 6Least Number of Unique Integers after K RemovalsMediumArrayHash TableGreedy
Solve → 7Best Sightseeing PairMediumArrayDynamic Programming
Solve → 8Largest Magic SquareMediumArrayMatrixPrefix Sum
Solve → 9Alert Using Same Key-Card Three or More Times in a One Hour PeriodMediumArrayHash TableString
Solve → 10Group AnagramsMediumArrayHash TableString
Solve → 11Sliding Window MaximumHardArrayQueueSliding Window
Solve → 12Least Number of Unique Integers after K RemovalsMediumArrayHash TableGreedy
Solve →