Compilare: main.cpp: In member function 'void Graph::print_solution(std::vector<int>, int)': main.cpp:62:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 62 | for(int i = start; i < solution.size(); i ++) | ~~^~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graph::bellman_ford()': main.cpp:82:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 82 | for(j = 0; j < weightedEdges.size(); j++) | ~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:100:5: warning: 'change' may be used uninitialized in this function [-Wmaybe-uninitialized] 100 | if(change == 1) | ^~