1Number of Divisible SubstringsMediumHash TableStringCounting
Solve → 2Maximum Number of BalloonsEasyHash TableStringCounting
Solve → 3Design A LeaderboardMediumHash TableDesignSorting
Solve → 4Design A LeaderboardMediumHash TableDesignSorting
Solve → 5Maximum Number of BalloonsEasyHash TableStringCounting
Solve → 6Number of Divisible SubstringsMediumHash TableStringCounting
Solve →