How to Crack DSA Interviews at Top US Tech Companies

Most candidates fail coding interviews not from lack of effort, but from practicing the wrong way. The fix is to study patterns, not problems — once you recognize the underlying technique, hundreds of questions collapse into a handful of templates.

Learn the core patterns

• Two pointers, sliding window, and fast/slow pointers.
• BFS/DFS on trees and graphs.
• Dynamic programming (start with 1-D, then 2-D).
• Heaps, intervals, and binary search on the answer.

Practice deliberately

Solve fewer problems, but solve them properly: time yourself, explain your approach out loud, and review the optimal solution even when yours worked. Quality of reps beats quantity every time.

Win the human round

Interviewers score communication as much as code. Narrate your thinking, state assumptions, test your own solution, and stay composed when stuck. MPLOY's mock interviews train exactly this — so the real thing feels familiar.