Eroare de compilare: user.cpp: In function ‘void dfs(int, int, int)’: user.cpp:36:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v[nod].size(); ++i) ~~^~~~~~~~~~~~~~~ user.cpp: In function ‘void Euler(int, int)’: user.cpp:49:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v[nod].size(); ++i) ~~^~~~~~~~~~~~~~~ user.cpp: In function ‘int main()’: user.cpp:131:18: error: ‘ay’ was not declared in this scope if(ax == ay) ^~ user.cpp: In function ‘int cc(int, int, int)’: user.cpp:105:1: warning: control reaches end of non-void function [-Wreturn-type] } ^