Compilare: main.cpp: In function 'void dijkstram(long long int)': main.cpp:22:13: warning: unused variable 'cost' [-Wunused-variable] 22 | int cost=pq.top().second; | ^~~~ main.cpp: In function 'int main()': main.cpp:37:19: warning: unused variable 'ok' [-Wunused-variable] 37 | int i,m,x,y,z,ok,j,mask; | ^~ main.cpp:52:13: warning: iteration 17 invokes undefined behavior [-Waggressive-loop-optimizations] 52 | p[i]=p[i-1]*2; | ~~~~^~~~~~~~~ main.cpp:51:14: note: within this loop 51 | for(i=1;i<=18;i++) | ~^~~~