Compilare: main.cpp: In function 'void dijkstra()': main.cpp:46:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<muchie>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 46 | for (i=0; i<G[p].size(); i++) | ~^~~~~~~~~~~~ main.cpp:63:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<muchie>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 63 | for (i=0; i<G[a.second].size(); i++) | ~^~~~~~~~~~~~~~~~~~~ main.cpp:41:9: warning: unused variable 'j' [-Wunused-variable] 41 | int i, j; | ^