Compilare: main.cpp: In function 'int bfs(int, int)': main.cpp:18:21: warning: unused variable 'i' [-Wunused-variable] 18 | int poz1,poz2,z,i,j,nr=0; | ^ main.cpp:18:23: warning: unused variable 'j' [-Wunused-variable] 18 | int poz1,poz2,z,i,j,nr=0; | ^ main.cpp: In function 'int bfs2(int, int)': main.cpp:48:21: warning: unused variable 'i' [-Wunused-variable] 48 | int poz1,poz2,z,i,j,nr=0; | ^ main.cpp:48:23: warning: unused variable 'j' [-Wunused-variable] 48 | int poz1,poz2,z,i,j,nr=0; | ^ main.cpp:74:1: warning: no return statement in function returning non-void [-Wreturn-type] 74 | } | ^ main.cpp: In function 'int main()': main.cpp:77:13: warning: unused variable 'k' [-Wunused-variable] 77 | int i,j,k,l,cnt=0; | ^ main.cpp:77:15: warning: unused variable 'l' [-Wunused-variable] 77 | int i,j,k,l,cnt=0; | ^ main.cpp:77:17: warning: unused variable 'cnt' [-Wunused-variable] 77 | int i,j,k,l,cnt=0; | ^~~