Trade Desk
Programmatic-advertising loops where latency is the constraint — algorithms plus design questions about bidding at very high request rates.
Typical loop
- 1Recruiter screen
- 2Technical phone screen
- 3Onsite: two algorithm rounds
- 4Design round on low-latency bidding
- 5Behavioral round
Asked on LeetCode
All 5 by time range →- Find the Length of the Longest Common PrefixmediumArrayHash TableStringTriefrequency 100.0
- Word LadderhardHash TableStringBreadth-First SearchBidirectional Searchfrequency 78.0
- Simple Bank SystemmediumArrayHash TableDesignSimulationfrequency 68.9
- Spiral MatrixmediumArrayMatrixSimulationfrequency 68.9
- String CompressionmediumTwo PointersStringfrequency 68.9