Compilare: main.cpp: In function 'int Dinic::dfs(int, int)': main.cpp:92:22: warning: comparison of integer expressions of different signedness: '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 92 | for(; cid[u] < adj[u].size(); ++cid[u]) { main.cpp: In function 'int main()': main.cpp:124:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::tuple<int, int, int, int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 124 | for(int i = 0; i < C.size(); ++i) get<4>(C[i]) = i; | ~~^~~~~~~~~~ main.cpp:127:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::tuple<int, int, int, int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 127 | for(int i = 0; i < C.size(); ++i) | ~~^~~~~~~~~~ main.cpp:129:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::tuple<int, int, int, int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 129 | for(int i = 0; i < C.size(); ++i) | ~~^~~~~~~~~~ main.cpp:131:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::tuple<int, int, int, int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 131 | for(int i = 0; i < C.size(); ++i) | ~~^~~~~~~~~~ main.cpp:132:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::tuple<int, int, int, int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 132 | for(int j = 0; j < C.size(); ++j) | ~~^~~~~~~~~~