Flipkart Grid Coding Round Preparation: What to Study

The online screening combines aptitude with coding — arrays, strings, hashing, and medium-level logic. Speed matters because the window is short and there is usually negative marking on aptitude sections in some editions.

Read the round instructions carefully: some editions weigh the coding score heavily, others use aptitude to break ties.

Arrays and strings (most common), hash maps, sorting and greedy, basic trees, and simple DP like knapsack-light problems. Geometry and complex math appear less often — prioritize breadth on the core list first.

For the ML track, weight shifts to statistics, data preprocessing, model basics, and reading code — practice on a real mini dataset end to end.

Week 1: arrays, strings, hash maps — 3 problems daily, timed at 20–25 minutes. Week 2: trees, greedy, and DP basics — 2 problems daily plus one aptitude drill. Week 3: full timed simulations of the screening, then review every wrong submission and note the pattern.

Track a pattern log — after 30 problems, the log tells you exactly which patterns to revisit.

Use Apply's PYQs library for company-style questions and the coding round preparation guide at /blog/coding-round-preparation-placement-guide for the full strategy. For the prototype round, practice presenting a working demo in under 10 minutes.