v has 10 element, the index starts from 0 to 9.
for(int j=10;j>0;--j)
{
cout<<v[j]; // v[10] out of range
}
you should update for loop to
for(int j=9; j>=0; --j)
// ^^^^^^^^^^
{
cout<<v[j]; // out of range
}
Or use reverse iterator to print element in reverse order
for (auto ri = v.rbegin(); ri != v.rend(); ++ri)
{
std::cout << *ri << std::endl;
}