| # | title | topic | type | difficulty |
|---|---|---|---|---|
| 1 | Breadth-first search: shortest path | Algorithms & Recursion | Coding | Hard |
| 2 | Depth-first search: recursive traversal | Algorithms & Recursion | Coding | Medium |
| 3 | Binary search (and where to insert) | Algorithms & Recursion | Coding | Hard |
| 4 | Head recursion vs tail recursion | Algorithms & Recursion | Coding | Hard |
| 5 |
| Insane Fibonacci: fib(78), recursively, in 2 seconds |
| Algorithms & Recursion |
| Coding |
| Hard |
| 6 | Insane FizzBuzz: no if, no ternary, no switch | Algorithms & Recursion | Coding | Hard |
| 7 | FizzBuzz, the classic | Algorithms & Recursion | Coding | Easy |