Compilare: main.cpp: In member function 'void MaxFlow::add_edge(int, int, int, int)': main.cpp:25:61: warning: narrowing conversion of '((MaxFlow*)this)->MaxFlow::g[to].std::vector<edge>::size()' from 'std::vector<edge>::size_type' {aka 'long unsigned int'} to 'int' [-Wnarrowing] 25 | g[from].push_back(edge {to, cap, 0, cost, g[to].size()}); | ~~~~~~~~~~^~ main.cpp:26:65: warning: narrowing conversion of '(((MaxFlow*)this)->MaxFlow::g[from].std::vector<edge>::size() - 1)' from 'std::vector<edge>::size_type' {aka 'long unsigned int'} to 'int' [-Wnarrowing] 26 | g[to].push_back(edge {from, 0, 0, -cost, g[from].size() - 1}); | ~~~~~~~~~~~~~~~^~~