Compilare: user.cpp: In function ‘int main()’: user.cpp:22:73: warning: operation on ‘poz’ may be undefined [-Wsequence-point] num[++poz]=(num[poz-1]*zero[poz-1]+num[poz-1]+unu[poz-1]*p2/2)%k; ^ user.cpp:22:73: warning: operation on ‘poz’ may be undefined [-Wsequence-point] user.cpp:22:73: warning: operation on ‘poz’ may be undefined [-Wsequence-point]