Dynamic Programming Explained Visually: Memoization, Tabulation, and the Patterns That Stick (opens in new tab)  📊Algorithms

There is a specific failure mode in DP interviews that nobody writes about. You have done the LeetCode problems. You understand memoization. You can explain overlapping subproblems. You solve Coin Change in practice, get the right answer, and feel ready. Then the interview starts. You get a DP problem. You recognize the pattern. You write the recurrence. Your code looks correct. And then the interviewer asks: "Walk me through what happens at dp[4]. What value is there and why?" You freeze. No...