Compilare: main.cpp: In function 'void kosaraju()': main.cpp:72:27: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 72 | if (ctc[i].size() == sz) | ~~~~~~~~~~~~~~^~~~~ main.cpp: In function 'void xdfs(int, std::vector<bool>&, std::vector<int>&, int, int)': main.cpp:85:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 85 | if (sp == ctc[cci].size()) | ~~~^~~~~~~~~~~~~~~~~~