Compilare: main.cpp: In function 'void dijkstra(int, double*)': main.cpp:34:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<da>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 34 | for(int i = 0; i < v[nod].size(); i ++) | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:56:28: warning: narrowing conversion of 'cost' from 'int' to 'double' [-Wnarrowing] 56 | v[x].push_back({y, cost}); | ^~~~ main.cpp:57:28: warning: narrowing conversion of 'cost' from 'int' to 'double' [-Wnarrowing] 57 | v[y].push_back({x, cost}); | ^~~~ main.cpp:51:9: warning: unused variable 'a' [-Wunused-variable] 51 | int a, b, c; | ^ main.cpp:51:12: warning: unused variable 'b' [-Wunused-variable] 51 | int a, b, c; | ^ main.cpp:51:15: warning: unused variable 'c' [-Wunused-variable] 51 | int a, b, c; | ^