Compilare: main.cpp: In function 'void dijkstra1()': main.cpp:40:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<EDGE>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 40 | for(i = 0; i < v[fr.nod].size(); i++) | ~~^~~~~~~~~~~~~~~~~~ main.cpp:28:12: warning: unused variable 'j' [-Wunused-variable] 28 | int i, j; | ^ main.cpp: In function 'void dijkstra2()': main.cpp:66:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<EDGE>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 66 | for(i = 0; i < v[fr.nod].size(); i++) | ~~^~~~~~~~~~~~~~~~~~ main.cpp:53:12: warning: unused variable 'j' [-Wunused-variable] 53 | int i, j; | ^