Compilare: main.cpp: In member function 'void FordFulkerson::init()': main.cpp:33:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<std::pair<int, long long int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 33 | for (int i = 0; i < g.size(); i++) { | ~~^~~~~~~~~~ main.cpp:34:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 34 | for (int j = 0; j < g[i].size(); j++) { | ~~^~~~~~~~~~~~~ main.cpp: In member function 'bool FordFulkerson::findAndUpdate(int, int, long long int&)': main.cpp:57:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 57 | for(int i = 0; i < eIndexes[u].size(); i++) { | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:149:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 149 | for (int j = 0; j < g_closure[i].size(); j++) { | ~~^~~~~~~~~~~~~~~~~~~~~