Compilare: main.cpp: In function 'void dijkstra(int)': main.cpp:29:14: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<muchie>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 29 | for(i=0;i<a[s].size();i++) | ~^~~~~~~~~~~~ main.cpp:40:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<muchie>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 40 | for(i=0;i<a[pmin].size();i++) | ~^~~~~~~~~~~~~~~ main.cpp:22:26: warning: unused variable 'k' [-Wunused-variable] 22 | long long nod,cost,i,k,pmin; | ^