how to optimize python code?

Question

I have a list of lists
Like:
l = [
["Mike", 25, 1500],
["Jane", 23, 2000],
["Mike", 25, 750],
]
and if first two elements of inner lists are same I want to merge them and sum the third element of them. Like:
res = [
["Mike", 25, 2250],
["Jane", 23, 2000],
]

This is my code:

https://code.sololearn.com/c7AQiANvinWd/?ref=app

Answer 1

Hisham YUM 🇲🇦 set is useful to remove duplicate, however in this case it is not useful.
Shadoff why are you using a list for this kind of data ? a dictionary will make the parsing easier. you can then create a key for the name and do comparaison

Answer 2

Try using Sets instead! Think about it 😉