Compilare: main.cpp: In function 'void dijkstra1()': main.cpp:39:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<EDGE>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 39 | for(i = 0; i < v[fr.nod].size(); i++) | ~~^~~~~~~~~~~~~~~~~~ main.cpp:27:12: warning: unused variable 'j' [-Wunused-variable] 27 | int i, j; | ^ main.cpp: In function 'void dijkstra2()': main.cpp:65:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<EDGE>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 65 | for(i = 0; i < v[fr.nod].size(); i++) | ~~^~~~~~~~~~~~~~~~~~ main.cpp:52:12: warning: unused variable 'j' [-Wunused-variable] 52 | int i, j; | ^