1#include <cstdio> 2#include <iterator> 3#include <memory> 4 5int main() 6{ 7 int a[] = { 0, 1, 2 }; 8 auto ai = std::cbegin(a); 9 10 int b[] = { 2, 1, 0 }; 11 auto bi = std::cend(b); 12 13 std::unique_ptr<int> u(new int(0)); 14 return *u + *ai + *(bi - 1); 15} 16 17