Compilare: main.cpp: In function 'int main()': main.cpp:23:30: warning: operation on 'u' may be undefined [-Wsequence-point] cout<<u--<<" "<<u--<<"\n"; ~^~ main.cpp:26:30: warning: operation on 'p' may be undefined [-Wsequence-point] cout<<p++<<" "<<p++<<" "<<p++<<"\n"; ~^~