Coding interview prep that builds muscle memory, not just familiarity.
Short, focused drills you can do in a few minutes — repeat until the patterns stick.
Spot the signals, pick the method, avoid the trap — pattern recognition before you write a line.
Read the code, derive the Big-O. Step-by-step explanations for time and space complexity.
Decision guides for pattern selection — BFS vs DFS, backtracking vs DP, stack vs queue and more.
Pick your drill type, frequency, and active hours.