Compilare: user.cpp: In function ‘int main()’: user.cpp:33:16: warning: array subscript has type ‘char’ [-Wchar-subscripts] edges[x][y] = 1; ^ user.cpp:33:19: warning: array subscript has type ‘char’ [-Wchar-subscripts] edges[x][y] = 1; ^ user.cpp:34:12: warning: array subscript has type ‘char’ [-Wchar-subscripts] G[x].push_back(y); ^ user.cpp:35:16: warning: array subscript has type ‘char’ [-Wchar-subscripts] ++deg[y]; ^ user.cpp:94:13: warning: ‘lol’ may be used uninitialized in this function [-Wmaybe-uninitialized] int64_t lol; ^