Compilare: main.cpp: In function 'void Solve_CTC()': main.cpp:505:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 505 | for (int i = 0; i < res.second.size(); i++) | ~~^~~~~~~~~~~~~~~~~~~ main.cpp:507:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 507 | for (int j = 0; j < res.second[i].size(); j++) | ~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'bool graphExists(std::vector<int>&)': main.cpp:536:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 536 | if (s > v.size()) | ~~^~~~~~~~~~