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Capital-one Master DSA Sheet

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

top-specificcapital-one-prep
0
57
Count Operations to Obtain Zero
Easy
Meeting Rooms II
Medium
Rotating the Box
Medium
Grumpy Bookstore Owner6 Months
Medium
Valid Parentheses
Easy
Spiral Matrix
Medium
Find the Length of the Longest Common Prefix3 Months
Medium
Minimum Operations to Write the Letter Y on a Grid6 Months
Medium
Binary Tree Paths6 Months
Easy
Block Placement Queries
Hard
Longest Substring Without Repeating Characters
Medium
Merge Intervals
Medium
Remove Boxes
Hard
Number of Adjacent Elements With the Same Color3 Months
Medium
Rotate Image
Medium
Number of Black Blocks6 Months
Medium
Palindromic Substrings3 Months
Medium
Non-overlapping Intervals
Medium
Container With Most Water6 Months
Medium
Number of Islands6 Months
Medium
LRU Cache
Medium
Minimum Absolute Difference Between Elements With Constraint30 Days
Medium
Word Ladder
Hard
Reconstruct Itinerary
Hard
Candy Crush3 Months
Medium
Simplify Path6 Months
Medium
Subarrays with K Different Integers
Hard
Best Time to Buy and Sell Stock
Easy
Letter Combinations of a Phone Number
Medium
Subarray Sum Equals K6 Months
Medium
Monotonic Array30 Days
Easy
Number of Changing Keys
Easy
Best Time to Buy and Sell Stock II
Medium
Add Two Numbers
Medium
Largest Rectangle in Histogram6 Months
Hard
Palindrome Number
Easy
Flood Fill
Easy
Minimum Time Difference
Medium
Number of Pairs of Strings With Concatenation Equal to Target
Medium
Number of Subarrays That Match a Pattern I
Medium
Add Strings
Easy
Coin Change
Medium
Number of Flowers in Full Bloom
Hard
Alternating Digit Sum6 Months
Easy
Design Memory Allocator30 Days
Medium
Text Justification30 Days
Hard
Design File System
Medium
Count Nice Pairs in an Array
Medium
Restore the Array From Adjacent Pairs30 Days
Medium
Brightest Position on Street
Medium
Simple Bank System30 Days
Medium
Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit6 Months
Medium
Count Prefix and Suffix Pairs II
Hard
Maximum Running Time of N Computers3 Months
Hard
Count Prefix and Suffix Pairs I
Easy
Count Alternating Subarrays
Medium
Four Divisors
Medium