Unbounded Knapsack Problems
11 Unbounded Knapsack problems on LeetCode, a Core DP interview pattern, ranked by importance (how often it comes up in real interviews). Difficulty (ELO) and importance shown per problem.
| # | PROBLEM | DIFF | ELO | IMP | PATTERNS |
|---|---|---|---|---|---|
| 1 | Coin Change | Easy | 1337 | 93 | |
| 2 | Coin Change II | Medium | 1523 | 91 | Linear Recurrence DP |
| 3 | Perfect Squares | Medium | 1405 | 88 | BFS Shortest Path (Unweighted) · General Math |
| 4 | Combination Sum IV | Easy | 1372 | 82 | Frequency Counting / Hash Map Lookup |
| 5 | Number of Dice Rolls With Target Sum | Medium | 1654 | 82 | Linear Recurrence DP · Modular Arithmetic |
MORE CORE DP PATTERNS
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