Compilare: main.cpp: In member function 'void Task::print_output()': main.cpp:139:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 139 | for (int k = 0; k < ctc.size(); k++) { | ~~^~~~~~~~~~~~ main.cpp:140:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 140 | for (int i = 0; i < ctc[k].size() - 1; i++) { | ~~^~~~~~~~~~~~~~~~~~~ main.cpp:141:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 141 | for (int j = i + 1; j < ctc[k].size(); j++) { | ~~^~~~~~~~~~~~~~~ main.cpp:151:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 151 | for (int i = 0; i < ctc.size() - 1; i++) { | ~~^~~~~~~~~~~~~~~~ main.cpp:152:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 152 | for (int j = i + 1; j < ctc.size(); j++) { | ~~^~~~~~~~~~~~ main.cpp:137:9: warning: unused variable 'index' [-Wunused-variable] 137 | int index = 1; | ^~~~~ main.cpp: In member function 'void Task::tarjan(int, int&)': main.cpp:121:26: warning: 'current' may be used uninitialized [-Wmaybe-uninitialized] 121 | while (!st.empty() && current != node) { | ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~ main.cpp:116:11: note: 'current' was declared here 116 | int current; | ^~~~~~~