Compilare: main.cpp: In function 'void dfs_tarjan(int)': main.cpp:29:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 29 | for(int i =0; i < g[node].size(); i++){ | ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void tarjan(int)': main.cpp:56:9: warning: unused variable 'scc' [-Wunused-variable] 56 | int scc = 0; | ^~~ main.cpp: In function 'int main()': main.cpp:75:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 75 | for(int i =0 ; i < strong_components.size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:77:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 77 | for(int j =0; j < strong_components[i].size(); j++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~