Compilare: main.cpp: In function 'void dijkstra(int)': main.cpp:35:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<muchie>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 35 | for(i=0;i<a[pmin].size();i++) | ~^~~~~~~~~~~~~~~ main.cpp:21:20: warning: unused variable 'k' [-Wunused-variable] 21 | int nod,cost,i,k,pmin; | ^ main.cpp: In function 'int main()': main.cpp:50:10: warning: unused variable 'j' [-Wunused-variable] 50 | {int m,i,j,x,y,nr=0,s,cost; | ^ main.cpp:50:16: warning: unused variable 'nr' [-Wunused-variable] 50 | {int m,i,j,x,y,nr=0,s,cost; | ^~