#include "s0027_remove_element.hpp"

int Solution::removeElement(vector<int>& nums, int val) {
  int len = nums.size();
  int f{0}, s{0};
  while (f < len) {
    if (nums[f] != val) {
      nums[s] = nums[f];
      ++s;
    }
    ++f;
  }
  return s;
}