update the iterator while looping through a list

Issue

This Content is from Stack Overflow. Question asked by Leimomi Bong

Newbie question… Looping through a list, and I want to update the iterator with the value at each index until I find the value ‘0’. Then return the index ‘0’ is located at.

I think it’s similar to a “sidewinder” algo, but I’m really unfamiliar!

here’s a photo of what i’m trying to do:

here's a photo of what's i'm trying to do



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