Compilare: main.cpp: In function 'void calcScc()': main.cpp:64:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 64 | for (int comp = 0; comp < scc.size(); comp++) | ~~~~~^~~~~~~~~~~~ main.cpp:82:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 82 | for (int c = 0; c < scc.size(); c++) | ~~^~~~~~~~~~~~ main.cpp: In function 'void calcTree()': main.cpp:129:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 129 | for (int i = 0; i < scc.size(); i++) | ~~^~~~~~~~~~~~