Python Dictionary, Defaultdict, and Counter Tricks

FAANG Coding Interviews / Data Structures and Algorithms / Leetcode

[GregHogg]

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[johnjaques]

the 'no i'm good' timing was perfect

[guilhermewxs]

Flexing is cooler in c++ imo cuz python is basically an english dialect at this point

[timothylee]

u can just use counter[c] = counter.get(c, 0) + 1. there isn’t a need for default dict

[andreaberetta]

With normal dict you can also avoid if else by writing ‘ counter[c]=counter.get(c, 0) +1 ‘

[GregHogg]

Join my DSA Discord community! Check my recent YouTube community post to get the link :)

[eduardprivat]

Whats the time differences between that Counter function and the regular way which all can write and dont need to read the code how Counter from collection really works, to avoid fails? They invent the wheel new?

[asagiai]

Nice. Sometimes idk if python having think of different functionality is good or not.
Like it probably have a function for every common thing.

Also
The no key exist in dictionary error. Is such a good experience.
I just usually handle it with Key Exception. But using default dictionary seems good.

[javierclement]

I knew about defaultdict(int) and defaultdict(list) which I use all the time in python, but I didn’t know Counter was literally just defaultdict(int) 🤯

[bioblade]

"how to get the dicts out apparently 😂

[vorkutavorkutlag]

doesnt it do the same thing behind the the scenes?

[blake_dexter]

Python comes in clutch, yet again. They made it such an easy and convenient language to work with, love it.

[aqib]

Hi Sir I am Aqib from India.
Can you plz make a video on all data structures in python (Advanced) of 2-3 hours

[THK]

Are we allowed to use these in a technical interview?

[pulkitjain]

It's there step process: Learn coding, earn money, do flirting

[istiaqueahmed]

Appreciate bro keeping it halal. Hash Maps over Harsh Mouths! FAANG over Flings!

[Ridgwaycer]

How much slower is the first method than the other two methods?

[spdjoker]

Why use a dictionary? If it were in C++ I’d make an array of 26 elements, then add to index c-‘a’

[JugMelodies]

That default dict behaved like an unordered map from c++.

[amrswalha]

He is a true programmer, he skips the girls to program 😢😢