Compilare: main.cpp: In function 'void DFS1(int)': main.cpp:29:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 29 | for (i = 0; i < v[nod].size(); i++) { | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'void DFS2(int)': main.cpp:48:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 48 | for (i = 0; i < rev[nod].size(); i++) { | ~~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:92:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 92 | for (j = 0; j < rez[i].size(); j++) { | ~~^~~~~~~~~~~~~~~