#include <iostream>
#include <vector>

template<class T>
bool isPalindrome(std::vector<T> v) {

	// The Empty Vector is also a Palindrome I guess
	if ( v.begin() == v.end() ) {
		return 1;
	}

	auto iter_front = v.begin() ;
	auto iter_end = v.end() - 1;

	// If
	while ( iter_front < iter_end ) {
		
		// Values are not the same so it is not a palindrome
		if ( *iter_front != *iter_end ) {
			return 0;
		}

		// Move iterators
		iter_front++;
		iter_end--;
	}

	return 1;
}

int main() {
	std::vector<int> l = {1, 2, 3, 2, 1};

	if ( isPalindrome(l) ) {
		std::cout << "This is a Palindrome" << std::endl;
	}
	else {
		std::cout << "This is *not* a Palindrome" << std::endl;
	}

	return 0;
}