VNG
Publicly shared interview reports rank the coding round among the harder ones in Vietnam. Get solid on hash maps + two pointers and the N-sum variants (3-sum, 4-sum).
22problems in set
Easy (4)Medium (17)Hard (1)
By topic
Frequently asked problems
Easy 10 min
Contains Duplicate
Easy 20 min
Linked List Cycle
Easy 15 min
Reverse Linked List
Easy 15 min
Two Sum
Medium 30 min
3Sum
Medium 30 min
Combination Sum
Medium 30 min
Course Schedule
Medium 20 min
Find Minimum in Rotated Sorted Array
Medium 25 min
Group Anagrams
Medium 25 min
House Robber
Medium 25 min
Jump Game
Medium 35 min
Longest Increasing Subsequence
Medium 30 min
Longest Repeating Character Replacement
Medium 20 min
Maximum Subarray
Medium 25 min
Merge Intervals
Medium 22 min
Non-overlapping Intervals
Medium 25 min
Number of Islands
Medium 25 min
Search in Rotated Sorted Array
Medium 25 min
Subsets
Medium 25 min
Top K Frequent Elements
Medium 15 min
Two Sum II - Input Array Is Sorted
Hard 40 min