Compilare: user.cpp: In function ‘int main()’: user.cpp:17:37: warning: operation on ‘a[(i + 1u)]’ may be undefined [-Wsequence-point] a[i]=a[i]+a[i+1]-(a[i+1]=a[i]); ^ user.cpp:18:37: warning: operation on ‘b[(i + 1u)]’ may be undefined [-Wsequence-point] b[i]=b[i]+b[i+1]-(b[i+1]=b[i]); ^ user.cpp:25:8: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(a[i]>=b[j]||b[i]<=a[j]) ^