Real questions required for Niuke interview [algorithm] summary of high-frequency TOP200 questions

subject	Number of errors
NC6 The maximum path of a binary tree and
NC20 The number string is converted into IP Address
NC21 Reverse the specified interval in the linked list
NC30 Missing first positive integer
NC35 Edit distance ( Two )	1
NC.38 Spiral matrix	2
NC.46 The sum added up is the combination of target values ( Two )	1
NC49 Longest bracket substring	1
NC51 Merge k Sorted linked list
NC.61 Sum of two numbers	1
NC.75 A number that appears only once in an array	2
NC79 Ugly number	3
NC81 The second of binary search tree k Nodes	0
NC91 The longest increasing subsequence	3
NC95 Longest continuous subsequence in array	1
NC100 Convert a string to an integer (atoi)
NC101 Compress string ( One )
NC107 Looking for peaks
NC122 Regular Expression Matching	2
NC128 The rain problem
NC.133 Rearrange the linked list	1
146. LRU Caching mechanisms	4
NC153 Envelope nesting problem	1
NC155 Longest strictly ascending subarray ( Two )	2
NC162 The path of a value in a binary tree ( 3、 ... and )	1
NC163 Longest ascending subsequence ( One )	0
NC164 Longest ascending subsequence ( Two )	1
NC165 Longest common subsequence ( One )	1
NC166 The maximum sum of successive subarrays ( Two )
NC167 The best time to buy and sell stocks ( Four )	2
NC169 Trim the leaves	1
NC170 The longest substring without repeating characters
NC172 Binary negation
NC173 Fill the array	2
NC174 Maximum
NC175 Legal bracket string	1
NC176 raid homes and plunder houses ( One )	0
NC177 raid homes and plunder houses ( Two )	2
NC178 raid homes and plunder houses ( 3、 ... and )	1
NC179 The length is K Repeated character substring
NC180 Add one... To the array
NC182 Word splitting ( Two )	2
NC183 Longest common subarray	2
NC184 Determine whether it is a binary search tree	1
NC185 The largest area of the island	1
NC188 Binary sum
NC189 Add one to the list	0
NC190 All subsequences of the string	1
NC191 The nearest common ancestor of a binary search tree	2
NC192 Postorder traversal of binary trees
NC194 Next spread
NC195 The diameter of a binary tree	0
NC197 Jumping game ( One )	0
NC198 Judge whether it is a complete binary tree
NC199 String decoding
NC201 Diagonal traversal matrix
NC204 The maximum width of a binary tree
NC205 Jumping game ( 3、 ... and )	1
NC206 Jumping game ( Two )	1
NC207 Sort odd ascending even descending linked list	1
NC208 Daily temperature
NC209 The shortest unordered continuous subarray	2
NC210 Spiral matrix ( Two )	1
NC213 The product of an array other than itself	1
NC214 To divide into equal and subsets	1
NC216 Evaluate the inverse Polish expression	1
NC217 Add operators to expressions
NC219 move away K Digit number
NC220 Repetitive DNA Sequence
NC221 All subsets of the set ( Two )	2
NC222 Insert interval	1
NC223 Construct binary tree from middle order and post order traversal sequence	1
NC224 Print the binary tree from bottom to top
NC225 The minimum path of a triangle and	2
NC226 The surrounding area
NC227 A number that appears only once ( Two )	0
NC229 Determine whether the character is unique
NC230 Nim game	0
NC231 A number that appears only once	0
NC232 The sum is the combination of the target values ( 3、 ... and )	1
NC233 The sum is the combination of the target values ( Four )	2
NC234 Minimum depth of binary tree
NC235 Gas station	2
NC236 Maximum difference	1
NC238 The sum is the combination of the target values	2
NC239 The chess pieces are flipped	0
NC241 Calculator ( Two )	1
NC242 Word search	1
NC245 Yang hui triangle ( One )	0
NC248 Sum of left leaves