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					49.Group AnagramsMedium12974387Add to ListShareGiven an array of stringsstrs, gr…				
				
			 
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					76.Minimum Window SubstringHard13478593Add to ListShareGiven two stringssandtof …				
				
			 
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					12.Integer to RomanMedium47464804Add to ListShareRoman numerals are represented …				
				
			 
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					42.Trapping Rain WaterHard22787305Add to ListShareGivennnon-negative integers re…				
				
			 
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					56.Merge IntervalsMedium16127577Add to ListShareGiven an arrayofintervalswherein…				
				
			 
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					40.Combination Sum IIMedium6774167Add to ListShareGiven a collection of candidat…				
				
			 
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					48.Rotate ImageMedium11082548Add to ListShareYou are given ann x n2Dmatrixrepres…				
				
			 
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					200.Number of IslandsMedium15918371Add to ListShareGiven anm x n2D binary gridgr…				
				
			 
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					387.First Unique Character in a StringEasy6436223Add to ListShareGiven a strings…				
				
			 
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					13.Roman to IntegerEasy6435387Add to ListShareRoman numerals are represented by …				
				
			 
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					30.Substring with Concatenation of All WordsHard28892123Add to ListShareYou are …				
				
			 
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					98.Validate Binary Search TreeMedium11369956Add to ListShareGiven therootof a bi…				
				
			 
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					108.Convert Sorted Array to Binary Search TreeEasy7280385Add to ListShareGiven a…				
				
			 
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					300.Longest Increasing SubsequenceMedium13979256Add to ListShareGiven an integer…				
				
			 
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					236.Lowest Common Ancestor of a Binary TreeMedium10903288Add to ListShareGiven a…