foo.c: In function 'main':
foo.c:104:9: warning: variable 'peg_state' set but not used [-Wunused-but-set-variable]
  104 |     int peg_state[10][15];
      |         ^~~~~~~~~
foo.c:103:9: warning: variable 'disk_location' set but not used [-Wunused-but-set-variable]
  103 |     int disk_location[15];
      |         ^~~~~~~~~~~~~

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