Compilare: main.cpp: In member function 'void FordFulkerson::init()': main.cpp:39:36: 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] 39 | for( int i = 0 ; i < g.size() ; i ++ ) { | ~~^~~~~~~~~~ main.cpp:40:44: 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] 40 | for( int j = 0 ; j < g [i].size() ; j ++ ) { | ~~^~~~~~~~~~~~~~ main.cpp: In member function 'bool FordFulkerson::findAndUpdate(int, int, long long int&)': main.cpp:60:44: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 60 | for( int i = 0 ; i < eIndexes[u].size() ; i ++ ) { | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:111:19: warning: unused variable 'c' [-Wunused-variable] 111 | long long c; | ^