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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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					62.Unique PathsMedium10250319Add to ListShareThere is a robot on anm x ngrid. Th…				
				
			 
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					890.Find and Replace PatternMedium1928121Add to ListShareGiven a list of strings…				
				
			 
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					242.Valid AnagramEasy5889232Add to ListShareGiven two stringssandt, returntrueif…				
				
			 
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					114.Flatten Binary Tree to Linked ListMedium7874473Add to ListShareGiven theroot…				
				
			 
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					236.Lowest Common Ancestor of a Binary TreeMedium10903288Add to ListShareGiven a…				
				
			 
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					34.Find First and Last Position of Element in Sorted ArrayMedium11860315Add to L…				
				
			 
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					240.Search a 2D Matrix IIMedium7925131Add to ListShareWrite an efficient algorit…				
				
			 
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					86.Partition ListMedium3949529Add to ListShareGiven theheadof a linked list and …				
				
			 
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					92.Reverse Linked List IIMedium6637309Add to ListShareGiven theheadof a singly l…				
				
			 
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					118.Pascal's TriangleEasy6587226Add to ListShareGiven an integernumRows, return …				
				
			 
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					695.Max Area of IslandMedium7297167Add to ListShareYou are given anm x nbinary m…				
				
			 
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					105.Construct Binary Tree from Preorder and Inorder TraversalMedium9289255Add to…				
				
			 
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					199.Binary Tree Right Side ViewMedium7018380Add to ListShareGiven therootof a bi…