Previous Questions

YANDEX

ID	Questions
1	Two Sum
2	Add Two Numbers
3	Longest Substring Without Repeating Characters
4	Median of Two Sorted Arrays
5	Longest Palindromic Substring
9	Palindrome Number
12	Integer to Roman
13	Roman to Integer
20	Valid Parentheses
21	Merge Two Sorted Lists
22	Generate Parentheses
23	Merge k Sorted Lists
27	Remove Element
28	Find the Index of the First Occurrence in a String
33	Search in Rotated Sorted Array
42	Trapping Rain Water
49	Group Anagrams
56	Merge Intervals
70	Climbing Stairs
71	Simplify Path
76	Minimum Window Substring
88	Merge Sorted Array
93	Restore IP Addresses
98	Validate Binary Search Tree
101	Symmetric Tree
103	Binary Tree Zigzag Level Order Traversal
104	Maximum Depth of Binary Tree
121	Best Time to Buy and Sell Stock
124	Binary Tree Maximum Path Sum
125	Valid Palindrome
135	Candy
136	Single Number
141	Linked List Cycle
146	LRU Cache
150	Evaluate Reverse Polish Notation
155	Min Stack
159	Longest Substring with At Most Two Distinct Characters
161	One Edit Distance
169	Majority Element
199	Binary Tree Right Side View
200	Number of Islands
204	Count Primes
205	Isomorphic Strings
206	Reverse Linked List
228	Summary Ranges
234	Palindrome Linked List
235	Lowest Common Ancestor of a Binary Search Tree
236	Lowest Common Ancestor of a Binary Tree
238	Product of Array Except Self
239	Sliding Window Maximum
242	Valid Anagram
253	Meeting Rooms II
283	Move Zeroes
300	Longest Increasing Subsequence
301	Remove Invalid Parentheses
332	Reconstruct Itinerary
340	Longest Substring with At Most K Distinct Characters
341	Flatten Nested List Iterator
347	Top K Frequent Elements
349	Intersection of Two Arrays
350	Intersection of Two Arrays II
356	Line Reflection
362	Design Hit Counter
380	Insert Delete GetRandom O(1)
392	Is Subsequence
404	Sum of Left Leaves
424	Longest Repeating Character Replacement
438	Find All Anagrams in a String
443	String Compression
485	Max Consecutive Ones
487	Max Consecutive Ones II
557	Reverse Words in a String III
560	Subarray Sum Equals K
567	Permutation in String
581	Shortest Unsorted Continuous Subarray
652	Find Duplicate Subtrees
657	Robot Return to Origin
658	Find K Closest Elements
680	Valid Palindrome II
692	Top K Frequent Words
716	Max Stack
768	Partition Labels
792	Binary Search
879	Maximize Distance to Closest Person
903	Implement Rand10() Using Rand7()
969	Number of Recent Calls
1019	Squares of a Sorted Array
1028	Interval List Intersections
1046	Max Consecutive Ones III
1253	Sort the Matrix Diagonally
1392	Find the Difference of Two Arrays
1547	Destination City
1576	Reorder Routes to Make All Paths Lead to the City Zero
1586	Longest Subarray of 1’s After Deleting One Element
2352	Design an ATM Machine
2750	Promise Pool
2759	Flatten Deeply Nested Array
2766	Find the Prefix Common Array of Two Arrays
2771	Throttle
2797	Event Emitter