Compilare: main.cpp: In function 'void dijkstra(int)': main.cpp:27:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<muchie>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 27 | for(i=0;i<a[s].size();i++) | ~^~~~~~~~~~~~ main.cpp:38:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<muchie>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 38 | 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; | ^