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:304:15: warning: variable 'direction2' set but not used [-Wunused-but-set-variable] 304 | coord direction2; | ^~~~~~~~~~ main.cpp:307:25: warning: unused variable 'k2' [-Wunused-variable] 307 | int pasi2[1001],k2=0; | ^~ main.cpp:308:25: warning: unused variable 'k3' [-Wunused-variable] 308 | int pasi3[1001],k3=0; | ^~ main.cpp:321:13: warning: unused variable 'cnt1' [-Wunused-variable] 321 | int cnt1=0; | ^~~~ main.cpp:322:13: warning: unused variable 'cnt2' [-Wunused-variable] 322 | int cnt2=0; | ^~~~ main.cpp:323:13: warning: unused variable 'cnt3' [-Wunused-variable] 323 | int cnt3=0; | ^~~~ main.cpp:324:13: warning: unused variable 'cnt4' [-Wunused-variable] 324 | int cnt4=0; | ^~~~ 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; | ^