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Visa Master DSA Sheet

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

top-specificvisa-prep
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Rotating the Box
Split the Array
Reverse Linked List
Length of Longest V-Shaped Diagonal Segment
Find the Length of the Longest Common Prefix3 Months
Valid Parentheses
Spiral Matrix6 Months
Longest Substring Without Repeating Characters6 Months
Create Target Array in the Given Order
Longest Palindromic Substring30 Days
Diameter of Binary Tree
Merge Intervals6 Months
Trapping Rain Water6 Months
Product of Array Except Self
Minimum Operations to Write the Letter Y on a Grid3 Months
Block Placement Queries
Divisor Game
Number of Black Blocks6 Months
Earliest Possible Day of Full Bloom
Largest Number
Count Nodes With the Highest Score
Odd String Difference
First Missing Positive
Rotate Image3 Months
Valid Palindrome II
Two Furthest Houses With Different Colors
Daily Temperatures
Number of Adjacent Elements With the Same Color6 Months
Match Alphanumerical Pattern in Matrix I
Longest Valid Parentheses
LRU Cache3 Months
Add Binary3 Months
Merge Sorted Array
Reverse Words in a String
Rotting Oranges
Container With Most Water
Longest Common Prefix
Course Schedule
Restore IP Addresses
LFU Cache
Two Sum6 Months
Search in Rotated Sorted Array
Number of Islands
Two Sum II - Input Array Is Sorted
Number of Divisible Triplet Sums30 Days
Walls and Gates
Word Ladder
Edit Distance
Minimum Absolute Difference Between Elements With Constraint3 Months
Contains Duplicate
Maximum Subarray3 Months
Reverse Nodes in k-Group
Word Search
Group Anagrams6 Months
Simplify Path6 Months
Matrix Block Sum6 Months
Candy Crush
Maximal Rectangle
Median of Two Sorted Arrays
Sort Colors6 Months
Sell Diminishing-Valued Colored Balls30 Days
Valid Anagram
Best Time to Buy and Sell Stock II
Valid Palindrome
Partition Equal Subset Sum
Number of Matching Subsequences
Grid Teleportation Traversal6 Months
Largest Rectangle in Histogram6 Months
Reconstruct Itinerary6 Months
Top K Frequent Elements
Letter Combinations of a Phone Number
Gas Station6 Months
Number of Changing Keys3 Months
Check If Array Pairs Are Divisible by k
Rotate Array
Image Smoother
Merge Two Sorted Lists
Shortest Palindrome
3Sum6 Months
Subarray Sum Equals K3 Months
Minimum Cost Path with Teleportations3 Months
Best Time to Buy and Sell Stock30 Days
Number of Perfect Pairs30 Days
Binary Tree Right Side View
Reverse Vowels of a String
Find Median from Data Stream
Happy Number6 Months
Add Strings3 Months
Substrings of Size Three with Distinct Characters
Longest Consecutive Sequence
Plus One
Last Stone Weight
Check if Array Is Sorted and Rotated
Sliding Window Maximum
First Unique Character in a String
Add Digits3 Months
Count Mentions Per User
Find Score of an Array After Marking All Elements
Restore the Array From Adjacent Pairs
Divide Players Into Teams of Equal Skill30 Days
Text Justification3 Months
Brightest Position on Street
Sort Characters By Frequency
Design Memory Allocator6 Months
Unique Paths
Next Greater Element II
Maximum Number of Events That Can Be Attended
Kth Largest Element in an Array
Rotate String
House Robber II
Alternating Digit Sum6 Months
Number of Subarrays That Match a Pattern I
Candy
Best Time to Buy and Sell Stock III
Balanced Binary Tree
Sum Root to Leaf Numbers
Minimum Time Difference6 Months
Longest Increasing Subsequence
Ugly Number II6 Months
Minimum Falling Path Sum
Find Peak Element
Best Time to Buy and Sell Stock using Strategy
Subarray Sums Divisible by K
Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit