Compilare: main.cpp: In member function 'int graph::connectedComponents(std::vector<std::vector<int> >)': main.cpp:90:9: warning: unused variable 'x' [-Wunused-variable] 90 | int x, y, ct = 0; | ^ main.cpp:90:12: warning: unused variable 'y' [-Wunused-variable] 90 | int x, y, ct = 0; | ^ main.cpp: In member function 'void graph::dfs(int, std::vector<std::vector<int> >, std::vector<int>&)': main.cpp:109:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 109 | for(int i = 0; i < G[node].size(); ++i) | ~~^~~~~~~~~~~~~~~~ main.cpp: In member function 'std::vector<int> graph::minimumDistance(int, std::vector<std::vector<int> >)': main.cpp:133:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 133 | for(int i = 0; i < G[node].size(); ++i) | ~~^~~~~~~~~~~~~~~~ main.cpp: In member function 'void graph::dfsBiconnected(int, int, std::vector<std::vector<int> >, std::vector<int>, std::vector<int>, std::vector<int>&, std::vector<std::vector<int> >&)': main.cpp:154:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 154 | for(int i = 0; i < G[node].size(); ++i) | ~~^~~~~~~~~~~~~~~~ main.cpp: In member function 'std::vector<std::vector<int> > graph::biconnectedComponents(std::vector<std::vector<int> >)': main.cpp:199:9: warning: unused variable 'x' [-Wunused-variable] 199 | int x, y; | ^ main.cpp:199:12: warning: unused variable 'y' [-Wunused-variable] 199 | int x, y; | ^ main.cpp: In member function 'void graph::dfsSccDirect(int, std::vector<std::vector<int> >, std::vector<int>&, std::stack<int>&)': main.cpp:221:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 221 | for(int i = 0; i < G[node].size(); ++i) | ~~^~~~~~~~~~~~~~~~ main.cpp: In member function 'void graph::dfsSccReverse(int, std::vector<std::vector<int> >, std::vector<int>&, std::vector<std::vector<int> >&)': main.cpp:237:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 237 | for(int i = 0; i < reverseG[node].size(); ++i) | ~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'std::vector<std::vector<int> > graph::scc(std::vector<std::vector<int> >)': main.cpp:260:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 260 | for(int j = 0; j < G[i].size(); ++j) | ~~^~~~~~~~~~~~~ main.cpp:249:9: warning: unused variable 'x' [-Wunused-variable] 249 | int x, y; | ^ main.cpp:249:12: warning: unused variable 'y' [-Wunused-variable] 249 | int x, y; | ^ main.cpp: In member function 'void graph::dfsTopo(int, std::vector<std::vector<int> >, std::vector<int>&, std::stack<int>&)': main.cpp:288:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 288 | for(int i = 0; i < G[node].size(); ++i) | ~~^~~~~~~~~~~~~~~~ main.cpp: In member function 'std::vector<int> graph::topologicalSort(std::vector<std::vector<int> >)': main.cpp:302:9: warning: unused variable 'x' [-Wunused-variable]