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ServiceNow SDE 2

The 67 highest-frequency questions from all time. Finish the strongest signals first.

Updated weekly · Latest source check: 13 Oct 2026ⓘLatest successful check of the sources used by this company. A check does not necessarily mean the questions changed.

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Top questions 67

Done	Question	LeetCode
Mark LRU Cache completed	LRU Cache	Solve
Mark Longest Substring Without Repeating Characters completed	Longest Substring Without Repeating Characters	Solve
Mark Find Minimum Diameter After Merging Two Trees completed	Find Minimum Diameter After Merging Two Trees	Solve
Mark Lexicographically Smallest String After Operations With Constraint completed	Lexicographically Smallest String After Operations With Constraint	Solve
Mark Maximum Score with Co-Prime Element completed	Maximum Score with Co-Prime Element	Solve
Mark Number of Distinct Roll Sequences completed	Number of Distinct Roll Sequences	Solve
Mark Trapping Rain Water completed	Trapping Rain Water	Solve
Mark Generate Parentheses completed	Generate Parentheses	Solve
Mark Number of Islands completed	Number of Islands	Solve
Mark String Compression completed	String Compression	Solve
Mark First Missing Positive completed	First Missing Positive	Solve
Mark Best Time to Buy and Sell Stock II completed	Best Time to Buy and Sell Stock II	Solve
Mark Container With Most Water completed	Container With Most Water	Solve
Mark Longest Repeating Character Replacement completed	Longest Repeating Character Replacement	Solve
Mark Sliding Window Maximum completed	Sliding Window Maximum	Solve
Mark Valid Parentheses completed	Valid Parentheses	Solve
Mark Asteroid Collision completed	Asteroid Collision	Solve
Mark Check if a Parentheses String Can Be Valid completed	Check if a Parentheses String Can Be Valid	Solve
Mark Coin Change completed	Coin Change	Solve
Mark Jump Game II completed	Jump Game II	Solve
Mark Kth Largest Element in an Array completed	Kth Largest Element in an Array	Solve
Mark LFU Cache completed	LFU Cache	Solve
Mark Longest Palindromic Substring completed	Longest Palindromic Substring	Solve
Mark Maximum Subarray completed	Maximum Subarray	Solve
Mark Merge Two Sorted Lists completed	Merge Two Sorted Lists	Solve
Mark Minimum Number of Swaps to Make the String Balanced completed	Minimum Number of Swaps to Make the String Balanced	Solve
Mark Move Zeroes completed	Move Zeroes	Solve
Mark Number of Visible People in a Queue completed	Number of Visible People in a Queue	Solve
Mark Reverse Words in a String II completed	Reverse Words in a String II	Solve
Mark Set Matrix Zeroes completed	Set Matrix Zeroes	Solve
Mark Two Sum completed	Two Sum	Solve
Mark 4Sum completed	4Sum	Solve
Mark Amount of Time for Binary Tree to Be Infected completed	Amount of Time for Binary Tree to Be Infected	Solve
Mark Binary Tree Right Side View completed	Binary Tree Right Side View	Solve
Mark Combination Sum completed	Combination Sum	Solve
Mark Critical Connections in a Network completed	Critical Connections in a Network	Solve
Mark Daily Temperatures completed	Daily Temperatures	Solve
Mark Find Peak Element completed	Find Peak Element	Solve
Mark Fruit Into Baskets completed	Fruit Into Baskets	Solve
Mark Gas Station completed	Gas Station	Solve
Mark House Robber II completed	House Robber II	Solve
Mark Largest Number completed	Largest Number	Solve
Mark Letter Combinations of a Phone Number completed	Letter Combinations of a Phone Number	Solve
Mark Longest Common Subsequence completed	Longest Common Subsequence	Solve
Mark Maximum Profit From Trading Stocks completed	Maximum Profit From Trading Stocks	Solve
Mark Median of Two Sorted Arrays completed	Median of Two Sorted Arrays	Solve
Mark Merge Intervals completed	Merge Intervals	Solve
Mark Minimum One Bit Operations to Make Integers Zero completed	Minimum One Bit Operations to Make Integers Zero	Solve
Mark Next Greater Element II completed	Next Greater Element II	Solve
Mark Next Permutation completed	Next Permutation	Solve
Mark Number of Distinct Islands completed	Number of Distinct Islands	Solve
Mark Pacific Atlantic Water Flow completed	Pacific Atlantic Water Flow	Solve
Mark Pow(x, n) completed	Pow(x, n)	Solve
Mark Product of Array Except Self completed	Product of Array Except Self	Solve
Mark Reverse Linked List completed	Reverse Linked List	Solve
Mark Reverse Words in a String completed	Reverse Words in a String	Solve
Mark Rotting Oranges completed	Rotting Oranges	Solve
Mark Simplify Path completed	Simplify Path	Solve
Mark Single Element in a Sorted Array completed	Single Element in a Sorted Array	Solve
Mark Sort Colors completed	Sort Colors	Solve
Mark Subarray Sum Equals K completed	Subarray Sum Equals K	Solve
Mark Subarrays with K Different Integers completed	Subarrays with K Different Integers	Solve
Mark Target Sum completed	Target Sum	Solve
Mark Time Needed to Rearrange a Binary String completed	Time Needed to Rearrange a Binary String	Solve
Mark Top K Frequent Elements completed	Top K Frequent Elements	Solve
Mark Word Break II completed	Word Break II	Solve
Mark Word Ladder completed	Word Ladder	Solve