std::eraseで消す範囲を図解

#include <iostream>

#include <vector>

int main()
{

  std::vector<int> v{ 0,1,2,3,4,5,6 };

  v.erase(v.begin()+1, v.begin() + 4);

  for (size_t i = 0; i < v.size(); i++) {
    printf("%d\n", v[i]);
  }

  getchar();
}