for(i=0;;i++)
{
scanf("%d",&a[i]);
length ++;
if(getchar()=='\n')
break;
}
for(i=0;;i++)
{
scanf("%d",&a[i]);
length ++;
if(getchar()=='\n')
break;
}
點這個: https://towardsdatascience.com/a-road-map-for-deep-learning-b9aee0b2919f