how to subset in vector in c++ code example

Example 1: slice a vector c++

std::vector<int> v1 = {1, 2, 3};

v2 = std::vector<int>(v1.begin() + 1, v1.end());
// I'm Horrible Hyena

Example 2: slice a vector c++

std::vector<int> v1 = {1, 2, 3};

v2 = std::vector<int>(v1.begin() + 1, v1.end());