nazariyv

Two pointers: one input, opposite ends

```python3
def fn(arr):
    left = ans = 0
    right = len(arr) - 1

    while left < right:
        # do some logic here with left and right
        if CONDITION:

cferdinandi

# Terminal Cheat Sheet

pwd         # print working directory
ls          # list files in directory
cd          # change directory
~           # home directory
..          # up one directory
-           # previous working directory
help        # get help
-h          # get help