Capital One LeetCode Interview Questions

47 questions all-time · 9 easy · 28 medium · 10 hard

Capital One has asked 47 distinct LeetCode questions across all recorded interviews: 9 easy, 28 medium and 10 hard. The questions reported most often are Simple Bank System, Spiral Matrix and Block Placement Queries. 5 of them were reported in interviews from the Last 30 Days window. Every question links straight to LeetCode, and the list can be filtered by difficulty and topic or sorted by how often the question comes up.

#	Problem	Difficulty	Frequency	Acceptance
1	Simple Bank System	Medium	100	61.4%
2	Spiral Matrix	Medium	93	53.9%
3	Block Placement Queries	Hard	92	16.9%
4	Text Justification	Hard	83	48.1%
5	Minimum Operations to Write the Letter Y on a Grid	Medium	82	61.9%
6	Candy Crush	Medium	75	77.4%
7	Count Alternating Subarrays	Medium	75	56.3%
8	Rotate Image	Medium	73	77.9%
9	Four Divisors	Medium	73	44.8%
10	Simplify Path	Medium	71	47.9%
11	Count Operations to Obtain Zero	Easy	71	74.9%
12	Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit	Medium	69	56.8%
13	Split Message Based on Limit	Hard	69	42.6%
14	Rotating the Box	Medium	66	79.1%
15	Number of Black Blocks	Medium	63	38.6%
16	Best Time to Buy and Sell Stock	Easy	59	55.3%
17	Number of Flowers in Full Bloom	Hard	59	57.2%
18	Find the Length of the Longest Common Prefix	Medium	59	56.4%
19	Count Prefix and Suffix Pairs II	Hard	59	27.2%
20	Remove Boxes	Hard	59	48.3%
21	Largest Rectangle in Histogram	Hard	59	47.4%
22	Coin Change	Medium	55	46.5%
23	Design File System	Medium	55	64.1%
24	Word Search	Medium	55	45.3%
25	Number of Subarrays That Match a Pattern I	Medium	55	66.8%
26	Palindrome Number	Easy	55	59.2%
27	Add Strings	Easy	49	51.9%
28	Merge Intervals	Medium	49	49.4%
29	Number of Islands	Medium	49	62.3%
30	Add Two Numbers	Medium	49	46.2%
31	Binary Tree Paths	Easy	49	66.6%
32	Non-overlapping Intervals	Medium	49	55.5%
33	Word Search II	Hard	49	37.3%
34	Meeting Rooms II	Medium	41	52.1%
35	Rotate Array	Medium	41	43.0%
36	Minimum Absolute Difference Between Elements With Constraint	Medium	41	34.1%
37	Reverse Nodes in k-Group	Hard	41	63.0%
38	K-diff Pairs in an Array	Medium	41	44.7%
39	Number of Adjacent Elements With the Same Color	Medium	41	55.8%
40	Best Time to Buy and Sell Stock II	Medium	41	69.5%
41	Count Prefix and Suffix Pairs I	Easy	41	77.7%
42	Valid Parentheses	Easy	41	42.3%
43	Merge Two Sorted Lists	Easy	41	66.8%
44	Get Biggest Three Rhombus Sums in a Grid	Medium	41	49.3%
45	Roman to Integer	Easy	41	64.9%
46	Find Servers That Handled Most Number of Requests	Hard	41	44.1%
47	LRU Cache	Medium	41	45.2%

Where this data comes from

These questions come from the public leetcode-company-wise-problems data set, which collects interview reports from candidates. They are community-reported rather than published by Capital One, so treat the list as a strong signal of what gets asked, not an official or exhaustive syllabus. Last refreshed 2026-08-08.

How to read this list

The tabs at the top split the questions by how recently people said they were asked in interviews. "Last 30 Days" is the past month, "Last 3 Months" is the past quarter, and so on. "All Time" is every question on record for this company.

Frequency is a score from 0 to 100 for how often a question showed up in that time window. A higher number means it came up more often, so the list starts with the most common questions first. It is a relative popularity signal within Capital One's questions, not a probability that you will be asked it. Acceptance is LeetCode's own share of submissions that pass for that problem, across all users, not something specific to Capital One. Click any question to open it on LeetCode.

Similar companies

X51 problems83112

Coupang49 problems23314

Pinterest49 problems12919

EPAM Systems46 problems16273

Palo Alto Networks46 problems12295

Agoda45 problems14292