Lessons from Consecutive Ones

$1.$ Digit DP works in any base. Binary is just base $2$ with digits $0$ and $1$.

$2.$ Track the previous digit when constraints involve adjacent positions.

$3.$ The dp table is tiny in binary: $O(\log n \times 2 \times 2)$ states. Binary digit DP appears in problems about binary representations, XOR constraints, and bit manipulation combined with counting. Apply these patterns when you encounter similar problems.