Compilare: main.cpp: In function 'int main()': main.cpp:77:22: warning: unused variable 's' [-Wunused-variable] 77 | int n,m,x,y,cost,s,nr,c; | ^ main.cpp:77:24: warning: unused variable 'nr' [-Wunused-variable] 77 | int n,m,x,y,cost,s,nr,c; | ^~ main.cpp:103:14: warning: 'cost' may be used uninitialized [-Wmaybe-uninitialized] 103 | g<<cost<<"\n"; | ^~~~ main.cpp:77:17: note: 'cost' was declared here 77 | int n,m,x,y,cost,s,nr,c; | ^~~~