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lor-engel
2021-10-16 19:36:51 -07:00
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@@ -133,11 +133,12 @@ To generate the unique url, we could:
```python ```python
def base_encode(num, base=62): def base_encode(num, base=62):
digits = [] digits = []
while num > 0 while num > 0:
remainder = modulo(num, base) remainder = num % base
digits.push(remainder) digits.append(remainder)
num = divide(num, base) num = num // base
digits = digits.reverse digits = digits.reverse()
return digits
``` ```
* Take the first 7 characters of the output, which results in 62^7 possible values and should be sufficient to handle our constraint of 360 million shortlinks in 3 years: * Take the first 7 characters of the output, which results in 62^7 possible values and should be sufficient to handle our constraint of 360 million shortlinks in 3 years: