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