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451.Sort Characters By FrequencyMedium5965221Add to ListShareGiven a strings, so…
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1207.Unique Number of OccurrencesEasy292062Add to ListShareGiven an array of int…
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380.Insert Delete GetRandom O(1)Medium6981353Add to ListShareImplement theRandom…
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79.Word SearchMedium12096487Add to ListShareGiven anm x ngrid of charactersboard…
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36.Valid SudokuMedium7416836Add to ListShareDetermine if a9 x 9Sudoku boardis va…
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224.Basic CalculatorHard4893367Add to ListShareGiven a stringsrepresenting a val…
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263.Ugly NumberEasy23601381Add to ListShareAnugly numberis a positive integer wh…
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374.Guess Number Higher or LowerEasy2401288Add to ListShareWe are playing the Gu…
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151.Reverse Words in a StringMedium49634399Add to ListShareGiven an input string…
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295.Find Median from Data StreamHard9320180Add to ListShareThemedianis the middl…
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212.Word Search IIHard7661347Add to ListShareGiven anm x nboardof characters and…
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1293.Shortest Path in a Grid with Obstacles EliminationHard369063Add to ListShar…
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49.Group AnagramsMedium12974387Add to ListShareGiven an array of stringsstrs, gr…
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12.Integer to RomanMedium47464804Add to ListShareRoman numerals are represented …
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692.Top K Frequent WordsMedium6373296Add to ListShareGiven an array of stringswo…