Status: IN
The dominant algorithmic shape is single-pass streaming: a left-to-right scan maintaining O(1) scalar accumulators, extending or resetting counters at each step, and exiting early when possible — producing O(n) time with O(1) space.
these three patterns compose into a unified streaming shape — accumulators provide O(1) state, extend-or-reset handles consecutive-element logic, and early-exit bounds work to the minimum needed
Depends on (SL): early-exit-optimizations-pervasive, o1-space-via-running-accumulators, extend-or-reset-canonical-consecutive-pattern