27 - Remove Element

 JAVA

• class Solution {
      public int removeElement(int[] nums, int val) {
          int k = 0;
          for (int x : nums) {
              if (x != val) {
                  nums[k++] = x;
              }
          }
          return k;
      }
  }

C++

• class Solution {
  public:
      int removeElement(vector<int>& nums, int val) {
          int k = 0;
          for (int x : nums) {
              if (x != val) {
                  nums[k++] = x;
              }
          }
          return k;
      }
  };