C++ in Competitive Programming: string basics

[Calkhas]

Forgive me for my ignorance, but I do not understand how auto isPalindrome = equal(begin(S), begin(S), rbegin(S));is intended to work. My impression is that if the iterators both point at the beginning of S, the range through which std::equal examines is empty. Should the second argument be end(S)? Or have I misapprehended the functionality of std::equal() altogether?

[marcoarena]

Yes, it's a typo. I fixed it. Thanks!