Compilare: user.cpp: In function ‘void dfs(int)’: user.cpp:18:9: warning: unused variable ‘i’ [-Wunused-variable] int i,poz,p,y; ^ user.cpp:18:11: warning: unused variable ‘poz’ [-Wunused-variable] int i,poz,p,y; ^ user.cpp: In function ‘int main()’: user.cpp:36:13: warning: unused variable ‘poz’ [-Wunused-variable] int x,y,poz,ras=0; ^