Compilare: main.cpp: In function 'void DFS(int, int&)': main.cpp:30:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | for (int i = 0; i < v[nod].size(); i++) | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:105:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 105 | while (cr[x] < v[x].size() && semafor[v[x][cr[x]].second] == 1) | ~~~~~~^~~~~~~~~~~~~ main.cpp:107:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 107 | if (cr[x] >= v[x].size()) { | ~~~~~~^~~~~~~~~~~~~~