CodeToCompass

𝙀𝙫𝙚𝙧 𝙬𝙧𝙞𝙩𝙩𝙚𝙣 𝙖 𝙡𝙤𝙤𝙥 𝙩𝙤 𝙛𝙞𝙣𝙙 𝙨𝙤𝙢𝙚𝙩𝙝𝙞𝙣𝙜 𝙞𝙣 𝙖 𝙡𝙞𝙨𝙩?
𝙔𝙚𝙖𝙝...! 𝙔𝙤𝙪’𝙧𝙚 𝙬𝙖𝙨𝙩𝙞𝙣𝙜 𝙩𝙞𝙢𝙚.

(Spoiler Alert! Long Post)

Here’s the thing:

You should use HashMaps.
(And Python gives them to you for free)

𝗖𝗼𝗻𝗳𝘂𝘀𝗲𝗱? 𝗟𝗲𝘁’𝘀 𝗯𝗿𝗲𝗮𝗸 𝗶𝘁 𝗱𝗼𝘄𝗻:

𝗕𝘂𝘁 𝘄𝗵𝗮𝘁 𝗶𝘀 𝗮 𝗛𝗮𝘀𝗵𝗠𝗮𝗽?

A data structure that stores key-value pairs.
You give it a key → it gives you the value.
No loops. No searching. Just instant access.

𝗔𝗻𝗱 𝘄𝗵𝘆 𝗦𝗵𝗼𝘂𝗹𝗱 𝗜 𝘂𝘀𝗲 𝗶𝘁?

• O(1) lookup time
• Cleaner code
• Solves 80% of your “how do I find this fast” problems

𝗢𝗵! 𝗕𝘂𝘁 𝗵𝗼𝘄 𝗱𝗼𝗲𝘀 𝗶𝘁 𝘄𝗼𝗿𝗸?

• Keys are passed through a hash function.
• That hash gives you an index.
• The value is stored there.

And guess what?

Behind the scenes:
Python uses dictionaries for this.

𝚖𝚢𝙿𝚛𝚘𝚏𝚒𝚕𝚎 = { "𝚗𝚊𝚖𝚎": "𝙸𝚖𝚝𝚒𝚊𝚣" }
𝚙𝚛𝚒𝚗𝚝(𝚖𝚢𝙿𝚛𝚘𝚏𝚒𝚕𝚎 ["𝚗𝚊𝚖𝚎"]) # 𝙸𝚖𝚝𝚒𝚊𝚣

Done. No loops. No pain.

𝗦𝗼? 𝗪𝗵𝗲𝗿𝗲 𝗦𝗵𝗼𝘂𝗹𝗱 𝗜 𝗨𝘀𝗲 𝗛𝗮𝘀𝗵𝗠𝗮𝗽𝘀?

✅ Counting things
✅ Looking things up fast
✅ Caching
✅ Grouping data

HashMaps → Write faster, smarter code.

P.S. If you want more real-world dev and coding tips like this,
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#coding #python #programming #datastructures

7 months ago (edited) | [YT] | 0