Criteo interview questions

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

Based on 3 distinct problems tagged to Criteo in the last 6 months (0 in the last 30 days, 0 in the last 3 months, 10 all-time) across two open datasets of LeetCode company tags. Tags are user-reported, so treat frequency as a signal, not a promise.

Difficulty mix (last 6 months): Easy 100%

Most tagged topics (share of problems): Array 67%, Hash Table 67%, Two Pointers 67%, Binary Search 67%, Sorting 67%, String 33%, Stack 33%, Bracket Sequences 33%

Watch out: Criteo has thin LeetCode data. Weight the reported questions and the format notes above more than this list.

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	Intersection of Two Arrays II	Easy	6 months	Array, Hash Table, Two Pointers, Binary Search
2	Valid Parentheses	Easy	6 months	String, Stack, Bracket Sequences
3	Intersection of Two Arrays	Easy	6 months	Array, Hash Table, Two Pointers, Binary Search

Signature problems

Problems where Criteo accounts for a large share of all recent tags across companies. These are the most Criteo-specific questions in the data.

#	Problem	Difficulty	Last seen	Topics
1	Intersection of Two Arrays II	Easy	6 months	Array, Hash Table, Two Pointers, Binary Search

Sources

• liquidslr/leetcode-company-wise-problems and snehasishroy/leetcode-companywise-interview-questions, merged by scripts/build_question_data.py.

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