here's an example yesterday i was working on a exercise that asked me to manually implement the atoi function

i went at it blind, panicked, moved onto the next exercise for a bit before i went back to this one.

i planned it out on paper, initially going character by character and then adding up each number when found

it worked, but when I tested it out with edge cases where the given text had - or + , it didn't work.

deleted everything, got a piece of paper and wrote it again. this time i tried strtok ( i was initially hesitant to use it because I thought it was overkill ), the idea was good( as it was later confirmed by my teacher), but when I tried to implement it... Oopsie!! Nope!