Duolingo

https://duolingo.com

Offers language learning apps and educational tools.

Problem Statistics

Breakdown of 3 problems.

Difficulty Distribution

Medium (2)

Hard (1)

Recency Distribution

Within 3-6 months (3)

Most Common Tags (Top 7)

Array (3)

Hash Table (2)

String (1)

Design (1)

Trie (1)

Sliding Window (1)

Greedy (1)

Coding Interview Problems for Duolingo

3

Encrypt and Decrypt Strings

3-6 months ago

Hard

Topics

Array

Hash Table

String

Design

+1 more

Trending

Recent

Mock

K Radius Subarray Averages

3-6 months ago

Medium

Topics

Array

Sliding Window

Trending

Recent

Mock

Minimum Number of People to Teach

3-6 months ago

Medium

Topics

Array

Hash Table

Greedy

Trending

Recent

Mock

You've reached the end!

Problem Statistics

Breakdown of 3 problems.

Difficulty Distribution

Medium (2)

Hard (1)

Recency Distribution

Within 3-6 months (3)

Most Common Tags (Top 7)

Array (3)

Hash Table (2)

String (1)

Design (1)

Trie (1)

Sliding Window (1)

Greedy (1)

Encrypt and Decrypt Strings

3-6 months ago

Hard

Topics

Array

Hash Table

String

Design

+1 more

Trending

Recent

Mock

K Radius Subarray Averages

3-6 months ago

Medium

Topics

Array

Sliding Window

Trending

Recent

Mock

Minimum Number of People to Teach

3-6 months ago

Medium

Topics

Array

Hash Table

Greedy

Trending

Recent

Mock

You've reached the end!