Compilare: main.cpp: In member function 'void Graph::printGraph()': main.cpp:76:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 76 | for(j = 0; j < adlist[i].size(); ++j) | ~~^~~~~~~~~~~~~~~~~~ main.cpp: In member function 'Graph Graph::transpose()': main.cpp:149:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 149 | for(j = 0; j < adlist[i].size(); ++j) | ~~^~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graph::stronglyConnectedComponents()': main.cpp:177:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 177 | for(j = 0; j < comp[i].size(); ++j) | ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:185:9: warning: unused variable 'i' [-Wunused-variable] 185 | int i, first, n, m; | ^ main.cpp:185:12: warning: unused variable 'first' [-Wunused-variable] 185 | int i, first, n, m; | ^~~~~