Compilare: user.cpp: In function ‘int main()’: user.cpp:22:19: warning: suggest parentheses around assignment used as truth value [-Wparentheses] if(v[a[l]]=true)g << b[l]-a[l]+1 << endl; else g << b[l]-a[l] << endl; ^ user.cpp:22:12: warning: ‘l’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(v[a[l]]=true)g << b[l]-a[l]+1 << endl; else g << b[l]-a[l] << endl; ^