Compilare: main.cpp: In function 'void DFS(int)': main.cpp:67:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 67 | for (i=0; i<G[x].size(); i++) | ~^~~~~~~~~~~~ main.cpp: In function 'void DFST(int)': main.cpp:80:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 80 | for (i=0; i<GT[x].size(); i++) | ~^~~~~~~~~~~~~ main.cpp:75:12: warning: unused variable 'poz' [-Wunused-variable] 75 | int i, poz; | ^~~ main.cpp: In function 'void afis()': main.cpp:91:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 91 | for (j=0; j<ctc[i].size(); j++) | ~^~~~~~~~~~~~~~