Eroare de compilare: user.cpp: In function ‘int euler(int)’: user.cpp:41:21: error: ‘size’ was not declared in this scope { while(size(G[v])!=0) ^ user.cpp:42:10: error: ‘w’ was not declared in this scope {w = auto it:G[v]; ^ user.cpp:42:14: error: expected primary-expression before ‘auto’ {w = auto it:G[v]; ^~~~ user.cpp:44:28: error: ‘sterge_muchie’ was not declared in this scope sterge_muchie (v, w); ^ user.cpp:48:3: warning: no return statement in function returning non-void [-Wreturn-type] } ^