There is an array with some numbers. All numbers are equal except for one. Try to find it!
```python
find_uniq([ 1, 1, 1, 2, 1, 1 ]) == 2
find_uniq([ 0, 0, 0.55, 0, 0 ]) == 0.55
```
It’s guaranteed that array contains at least 3 numbers.
The tests contain some very huge arrays, so think about performance.
This is the first kata in series:
1. Find the unique number (this kata)
2. [Find the unique string](https://www.codewars.com/kata/585d8c8a28bc7403ea0000c3)
3. [Find The Unique](https://www.codewars.com/kata/5862e0db4f7ab47bed0000e5)
def find_uniq(arr):
    if (arr[0]==arr[1]):
        return([x  for x in arr[2:] if x!=arr[0] ][0])
    return(arr[0] if arr[1]==arr[2] else arr[1])

def find_uniq(arr):
    if (arr[0]==arr[1]):
        return([x  for x in arr[2:] if x!=arr[0] ][0])
    return(arr[0] if arr[1]==arr[2] else arr[1])
