Compilare: main.cpp: In function 'int lee(coord, coord)': main.cpp:90:9: warning: unused variable 'cnt' [-Wunused-variable] 90 | int cnt=0; | ^~~ main.cpp: In function 'void douacerinta()': main.cpp:312:15: warning: variable 'direction2' set but not used [-Wunused-but-set-variable] 312 | coord direction2; | ^~~~~~~~~~ main.cpp: In function 'int lee(coord, coord)': main.cpp:93:16: warning: control reaches end of non-void function [-Wreturn-type] 93 | queue<int> X; | ^