Stalin Sort

function stalinSort(arr) {
  let i = 1;
  while (i < arr.length) {
    if (arr[i] < arr[i - 1])
      arr.splice(i, 1);
    else i++;
  }
}

def stalin_sort(arr):
    i = 1
    while i < len(arr):
        if arr[i] < arr[i - 1]:
            arr.pop(i)
        else: i += 1

void stalinSort(vector<int>& arr) {
  auto it = arr.begin() + 1;
  while (it != arr.end()) {
    if (*it < *(it - 1)) it = arr.erase(it);
    else ++it;
  }
}

void StalinSort(List<int> arr) {
  int i = 1;
  while (i < arr.Count) {
    if (arr[i] < arr[i - 1]) arr.RemoveAt(i);
    else i++;
  }
}

int stalinSort(int arr[], int n) {
  int len = 1;
  for (int i = 1; i < n; i++)
    if (arr[i] >= arr[len-1])
      arr[len++] = arr[i];
  return len; // new length
}