Compilare: main.cpp: In member function 'bool MaxFlow::bfs()': main.cpp:44:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int h = 0; h < g[node].size(); h++){ ~~^~~~~~~~~~~~~~~~ main.cpp: In member function 'int MaxFlow::dfs(int, int)': main.cpp:59:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int &h = rem[node]; h < g[node].size(); h++){ ~~^~~~~~~~~~~~~~~~ main.cpp: In member function 'void MaxFlow::addEdge(int, int, int)': main.cpp:77:33: warning: narrowing conversion of '((MaxFlow*)this)->MaxFlow::g[y].std::vector<_Tp, _Alloc>::size<Edge, std::allocator<Edge> >()' from 'std::vector<Edge>::size_type {aka long unsigned int}' to 'int' inside { } [-Wnarrowing] g[x].push_back({y, g[y].size(),0, cap}); ~~~~~~~~~^~ main.cpp:78:36: warning: narrowing conversion of '(((MaxFlow*)this)->MaxFlow::g[x].std::vector<_Tp, _Alloc>::size<Edge, std::allocator<Edge> >() - 1ul)' from 'std::vector<Edge>::size_type {aka long unsigned int}' to 'int' inside { } [-Wnarrowing] g[y].push_back({x, g[x].size() - 1,0, 0}); ~~~~~~~~~~~~^~~ main.cpp: In function 'int main()': main.cpp:140:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int h = 0;h < graph.g[node].size() ;h++){ ~~^~~~~~~~~~~~~~~~~~~~~~