giles 1c40fec8fa ocaml: phase 5.1 tic_tac_toe.ml baseline (3x3 winner check, X wins top row = 1) ...

Board as 9-element flat int array, 0=empty, 1=X, 2=O. Three
predicate functions:

  check_row b r       check_col b c       check_diag b

each return the winning player's mark or 0. Main 'winner' loops
i = 0..2 calling row(i)/col(i) then check_diag, threading via a
result ref.

Test board:
  X X X
  . O .
  . . O

X wins on row 0 -> winner returns 1.

Tests Array.of_list with row-major 'b.(r * 3 + c)' indexing,
multi-fn collaboration, and structural equality on int values.

66 baseline programs total.

2026-05-09 14:00:49 +00:00

1.4 KiB

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