Compilare: main.cpp: In function 'int main()': main.cpp:45:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 45 | for(j=0; j<ctc[i].size(); j++) | ~^~~~~~~~~~~~~~ main.cpp: In function 'void dfs(int)': main.cpp:59:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 59 | for(j=0; j<G[x].size(); j++) | ~^~~~~~~~~~~~ main.cpp: In function 'void dfst(int)': main.cpp:77:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 77 | for(j=0; j<GT[x].size(); j++) | ~^~~~~~~~~~~~~