Compilare: main.cpp: In function 'void addEdge(int, int, int)': main.cpp:30:32: warning: narrowing conversion of '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:31:35: warning: narrowing conversion of '(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 'void repair(int, int)': main.cpp:37:32: warning: narrowing conversion of '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:38:35: warning: narrowing conversion of '(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 'bool bfs()': main.cpp:54:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int h = 0 ; h < g[node].size() ; h++){ ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int dfs(int, int)': main.cpp:72:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int &h = rem[node] ; h < g[node].size() ; h++){ ~~^~~~~~~~~~~~~~~~