Compilare: main.cpp: In function 'void dijkstra(int)': main.cpp:62:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 62 | for( i = 0; i < G[x].size(); i++ ){ | ~~^~~~~~~~~~~~~ main.cpp:47:9: warning: unused variable 'vfmin' [-Wunused-variable] 47 | int vfmin, i, mini, x, c; | ^~~~~ main.cpp:47:19: warning: unused variable 'mini' [-Wunused-variable] 47 | int vfmin, i, mini, x, c; | ^~~~