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Servicenow Master DSA Sheet

This compilation contains exclusive, previously asked data structure and algorithm questions from real Servicenow interviews. Focus on these core problem patterns to confidently tackle even the hardest interview challenges.

top-specificservicenow-prep
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Reverse Linked List
Easy
Zigzag Conversion
Medium
Top K Frequent Words
Medium
Valid Parentheses6 Months
Easy
Jump Game II
Medium
Meeting Rooms II
Medium
Asteroid Collision6 Months
Medium
Design HashMap
Easy
Pacific Atlantic Water Flow
Medium
Trapping Rain Water6 Months
Hard
Longest Palindromic Substring
Medium
Number of Distinct Roll Sequences
Hard
Maximum Product Subarray
Medium
Longest Substring Without Repeating Characters
Medium
Next Permutation
Medium
Pow(x, n)
Medium
Merge Intervals
Medium
Lexicographically Smallest String After Operations With Constraint
Medium
Find Minimum Diameter After Merging Two Trees
Hard
Generate Parentheses
Medium
Longest Repeating Character Replacement6 Months
Medium
Basic Calculator II
Medium
Largest Number
Medium
First Missing Positive
Hard
Number of Visible People in a Queue
Hard
Daily Temperatures
Medium
Maximum Subarray
Medium
Single Element in a Sorted Array
Medium
Check if a Parentheses String Can Be Valid
Medium
LFU Cache
Hard
Container With Most Water
Medium
Set Matrix Zeroes
Medium
Move Zeroes
Easy
Maximal Square
Medium
Two Sum
Easy
String Compression
Medium
Time Needed to Rearrange a Binary String
Medium
LRU Cache3 Months
Medium
Permutations
Medium
Longest Common Subsequence
Medium
Word Ladder6 Months
Hard
Combination Sum
Medium
Edit Distance
Medium
Number of Islands
Medium
Rotting Oranges6 Months
Medium
Letter Combinations of a Phone Number
Medium
Median of Two Sorted Arrays
Hard
Critical Connections in a Network3 Months
Hard
Subarrays with K Different Integers
Hard
Maximum Profit From Trading Stocks
Medium
Reverse Words in a String II
Medium
Best Time to Buy and Sell Stock II3 Months
Medium
Group Anagrams
Medium
Binary Tree Right Side View
Medium
Gas Station
Medium
Subarray Sum Equals K
Medium
Top K Frequent Elements
Medium
Merge Two Sorted Lists6 Months
Easy
Simplify Path6 Months
Medium
Minimum One Bit Operations to Make Integers Zero
Hard
Vowels of All Substrings
Medium
Word Search
Medium
Best Time to Buy and Sell Stock
Easy
Sliding Window Maximum6 Months
Hard
Minimum Number of Swaps to Make the String Balanced
Medium
Longest Consecutive Sequence
Medium
4Sum
Medium
House Robber II
Medium
Palindrome Linked List
Easy
Kth Largest Element in an Array
Medium
Coin Change
Medium
Next Greater Element II
Medium
Number of Distinct Islands
Medium
Target Sum
Medium
Fruit Into Baskets6 Months
Medium
Find First and Last Position of Element in Sorted Array
Medium
Find Peak Element
Medium
Amount of Time for Binary Tree to Be Infected
Medium