Practo Software Engineer Interview Questions
The questions to prepare for a Practo Software Engineer interview. Questions from real interview reports rank first. Updated daily.
Implement factorial recursively and optimize repeated evaluations with memoization.
PractoImplement insert, delete, and random selection in average O(1) time using an array and hash map.
PractoMerge two sorted arrays into one sorted array using a two-pointer linear scan.
PractoUse RANK and a department join to find every student tied for the highest marks in each department.
PractoExplain how primary keys and unique keys differ in nullability, purpose, and table design in PostgreSQL.
PractoIdentify duplicate user transactions by matching business fields and return each duplicate group with its count and record IDs.
Practo
RevolutRewrite a slow PostgreSQL loan payment query to reduce scanned rows while preserving the required aggregated results.
AmeripriseEEltro Cyberchrome Private
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Evaluates data modeling and schema design for user interactions at scale.
PractoTests deep JavaScript understanding and ability to reason about execution.
PractoTests how Java heap allocation, reachability, and garbage collection work, plus the practical impact on leaks and pauses.
Practo