Compilare: user.cpp: In function ‘int main()’: user.cpp:22:81: warning: operation on ‘poz’ may be undefined [-Wsequence-point] num[++poz]=((num[poz-1]*zero[poz-1])%k+num[poz-1]+unu[poz-1]*(p2%k)/2)%k; ^ user.cpp:22:81: warning: operation on ‘poz’ may be undefined [-Wsequence-point] user.cpp:22:81: warning: operation on ‘poz’ may be undefined [-Wsequence-point] user.cpp:22:81: warning: operation on ‘poz’ may be undefined [-Wsequence-point]