# Problem 

This loop keeps running until the array's length reaches 6. Calculate the time complexity.

```python
def loop_until_six(arr):
    while len(arr) > 6:
        arr = arr[:len(arr)//3]
    return arr[0]
```

# Solution

The difference between this algorithm and Problem 12 is that the loop stops more pre-maturely. But if the input is in the thousands, whether the loop stops at 6 or 1 is insignificant. The time complexity is still logarithmic.

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