Compilare: main.cpp: In function 'void DFS(int)': main.cpp:53:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 53 | for(i = 0; i < G[x].size(); i ++) | ~~^~~~~~~~~~~~~ main.cpp: In function 'void DFST(int)': main.cpp:63:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 63 | for(i = 0; i < GT[x].size(); i ++) | ~~^~~~~~~~~~~~~~ main.cpp: In function 'void afisare()': main.cpp:73:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 73 | for(j = 0; j < CTC[i].size(); j ++) | ~~^~~~~~~~~~~~~~~