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Intel interview questions

The most frequent LeetCode problems tagged to Intel. This is a data-only page. For process and behavioral prep, use the coding guide and behavioral guide.

Based on 0 distinct problems tagged to Intel in the last 6 months (0 in the last 30 days, 0 in the last 3 months, 21 all-time) across two open datasets of LeetCode company tags. Tags are user-reported, so treat frequency as a signal, not a promise.

Most frequent problems

Ranked by frequency, weighted toward the last 30 days. Classics like Two Sum sit near the top of almost every company's list because users tag them everywhere. Solve those fast. The signature list below is more specific to this company.

# Problem Difficulty Last seen Topics
1 Find Consecutive Integers from a Data Stream Medium Older Hash Table, Design, Queue, Counting
2 Maximum Nesting Depth of the Parentheses Easy Older String, Stack, Bracket Sequences
3 Two Sum Easy Older Array, Hash Table
4 Copy List with Random Pointer Medium Older Hash Table, Linked List
5 Valid Parentheses Easy Older String, Stack, Bracket Sequences
6 Number of Islands Medium Older Array, Depth-First Search, Breadth-First Search, Union-Find
7 Container With Most Water Medium Older Array, Two Pointers, Greedy
8 Trapping Rain Water Hard Older Array, Two Pointers, Dynamic Programming, Stack
9 Count Primes Medium Older Array, Math, Enumeration, Number Theory
10 LRU Cache Medium Older Hash Table, Linked List, Design, Doubly-Linked List
11 Linked List Cycle Easy Older Hash Table, Linked List, Two Pointers, Floyd's Cycle Finding Algorithm
12 Longest Substring Without Repeating Characters Medium Older Hash Table, String, Sliding Window
13 Lowest Common Ancestor of a Binary Tree Medium Older Tree, Depth-First Search, Binary Tree, Binary Lifting
14 Majority Element II Medium Older Array, Hash Table, Sorting, Counting
15 Maximum Subarray Medium Older Array, Divide and Conquer, Dynamic Programming
16 Min Stack Medium Older Stack, Design
17 Palindrome Linked List Easy Older Linked List, Two Pointers, Stack, Recursion
18 Palindrome Number Easy Older Math
19 Product of Array Except Self Medium Older Array, Prefix Sum
20 Rotate Image Medium Older Array, Math, Matrix
21 Fibonacci Number Easy Older Math, Dynamic Programming, Recursion, Memoization

Sources

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