Compilare: main.cpp: In member function 'void FordFulkerson::init()': main.cpp:35:27: 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] 35 | for (int i = 0; i < g.size(); i++) { | ~~^~~~~~~~~~ main.cpp:36:31: 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] 36 | for (int j = 0; j < g[i].size(); j++) { | ~~^~~~~~~~~~~~~ main.cpp: In member function 'bool FordFulkerson::findAndUpdate(int, int, long long int&)': main.cpp:54:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 54 | for (int i = 0; i < eIndexes[u].size(); i++) { | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:159:9: warning: statement has no effect [-Wunused-value] 159 | u; v; | ^ main.cpp:159:12: warning: statement has no effect [-Wunused-value] 159 | u; v; | ^