/in/foo.c: In function 'F':
/in/foo.c:32:21: error: 'LONG_LONG_MAX' undeclared (first use in this function)
     long long min = LONG_LONG_MAX;
                     ^~~~~~~~~~~~~
/in/foo.c:32:21: note: each undeclared identifier is reported only once for each function it appears in
/in/foo.c: In function 'Solve':
/in/foo.c:59:21: error: 'LONG_LONG_MAX' undeclared (first use in this function)
     long long min = LONG_LONG_MAX;
                     ^~~~~~~~~~~~~
/in/foo.c: In function 'main':
/in/foo.c:102:9: warning: variable 'peg_state' set but not used [-Wunused-but-set-variable]
     int peg_state[10][15];
         ^~~~~~~~~
/in/foo.c:101:9: warning: variable 'disk_location' set but not used [-Wunused-but-set-variable]
     int disk_location[15];
         ^~~~~~~~~~~~~