giles
6d7df11224
Some checks failed
Test, Build, and Deploy / test-build-deploy (push) Failing after 22s
Count 4-connected components of 1-cells via DFS flood from every
unvisited 1-cell.
Grid (1s shown as #):
# # . . . # #
# . . . # # .
. . # # . . .
. # # # . # #
# . . . . # .
# # . # # # .
Components:
{(0,0),(0,1),(1,0)}
{(0,5),(0,6),(1,4),(1,5)}
{(2,2),(2,3),(3,1),(3,2),(3,3)}
{(3,5),(3,6),(4,5),(5,3),(5,4),(5,5)}
{(4,0),(5,0),(5,1)}
-> 5 islands
Complementary to flood_fill.ml (largest component); this counts
total components.
Tests recursive function returning () at early-exit branches,
ordered double-for entry pass triggering one fill per island root.
180 baseline programs total.