#hashmap 검색 결과

Kushal Koradia

. 10. 1.

✅ Day 108 of #150DaysOfDSA 📍 LC 631: Design Excel Sum Formula Implemented a mini spreadsheet with cell updates, reset & formula evaluation. Used HashMap for storage & parsing formulas. ⏱ O(n) | O(1) #Design #HashMap #150DaysOfDSA ✨ Took help from a YouTube video 2 understand

Kushal_Koradia's tweet image. ✅ Day 108 of #150DaysOfDSA
📍 LC 631: Design Excel Sum Formula
Implemented a mini spreadsheet with cell updates, reset &amp; formula evaluation. Used HashMap for storage &amp; parsing formulas.
⏱ O(n) | O(1)
#Design #HashMap #150DaysOfDSA
✨ Took help from a YouTube video 2 understand

JAIKUMAR DEWANGAN

@JAI_KUMAR_007

. 9. 23.

🔤 First Unique Character in a String Track character frequency & their indices → first index with frequency 1 = answer ✅ 🧠 TC: O(n) 📦 SC: O(n) 💡 Code is in the comments! #DSA #HashMap #Queue #Leetcode #100DaysOfCode

JAI_KUMAR_007's tweet image. 🔤 First Unique Character in a String

Track character frequency &amp; their indices → first index with frequency 1 = answer ✅

🧠 TC: O(n)
📦 SC: O(n)
💡 Code is in the comments!

#DSA #HashMap #Queue #Leetcode #100DaysOfCode

Kushal Koradia

@Kushal_Koradia

. 10. 12.

✅ Day 117 of #150DaysOfDSA 📍 LC 3162: Sum of Elements With Frequency Divisible by K Counted frequencies of each element, then summed those whose counts are divisible by k. Simple frequency-mapping logic → clean O(n) implementation. #Arrays #HashMap #Implementation #BruteForce

Kushal_Koradia's tweet image. ✅ Day 117 of #150DaysOfDSA
📍 LC 3162: Sum of Elements With Frequency Divisible by K
Counted frequencies of each element, then summed those whose counts are divisible by k.
Simple frequency-mapping logic → clean O(n) implementation.
#Arrays #HashMap #Implementation #BruteForce

Sherry_

@shery_shukla

. 8. 12.

Day 29 of #30DayOfCodingChallenge with #Java - Learning #HashMap in Java - solving hashmap and hashset questions on gfg . . #DSA #coding #java #programming

shery_shukla's tweet image. Day 29 of #30DayOfCodingChallenge with #Java
- Learning #HashMap in Java
- solving hashmap and hashset questions on gfg
.
.
#DSA #coding #java #programming

Sumit Kumar

@SumitKumar9128

. 7. 19.

🧵 Day 311 of #geekstreak2025 ✅ GFG POTD: Count Unique Vowel Strings 🧠 Counted frequency of each vowel in the string, then multiplied all frequencies × factorial of distinct vowels count. Used hashmap + frequency logic — worked clean! #dsa #hashmap #math #string #potd

SumitKumar9128's tweet image. 🧵 Day 311 of #geekstreak2025
✅ GFG POTD: Count Unique Vowel Strings
🧠 Counted frequency of each vowel in the string,
then multiplied all frequencies × factorial of distinct vowels count.
Used hashmap + frequency logic — worked clean!

#dsa #hashmap #math #string #potd

kakbelga

@kakbelga

. 2. 27.

eu amo usar hashtags porra #relatable #hashtags #hashmap #vaitomando #noprocedimento #calendula01032025 #teefodeclothing

kakbelga's tweet image. eu amo usar hashtags porra
#relatable #hashtags #hashmap #vaitomando #noprocedimento #calendula01032025 #teefodeclothing

Frözzen

@frozzencode

2024. 7. 1.

#day 23/90 Q.Two Sum II - Input Array Is Sorted #leetcode Better Solution using HashMap. #hashmap

Code_Nik

@Nik_Coding10

. 6. 27.

Explored unordered_map in C++ today! Solved LC 242 (Valid Anagram), LC 1 (Two Sum), and LC 1207 (Unique Occurrences). Maps are super helpful for frequency-based problems. New language learning coming soon 👀 #DSA #LeetCode #HashMap #Cplusplus #CodeNewbie

Nik_Coding10's tweet image. Explored unordered_map in C++ today!

Solved LC 242 (Valid Anagram), LC 1 (Two Sum), and LC 1207 (Unique Occurrences).

Maps are super helpful for frequency-based problems.

New language learning coming soon 👀
#DSA #LeetCode #HashMap #Cplusplus #CodeNewbie

Furqan 🚀

@B_Furqan07

. 6. 28.

✅ Day 120 — K Different Subarrays 🧠 Trick: Exactly K = atMost(K) - atMost(K-1) 📦 Sliding window + hashmap 📈 0 ms AC on a HARD problem! #LeetCode #SlidingWindow #HashMap #100DaysOfCode #C++

B_Furqan07's tweet image. ✅ Day 120 — K Different Subarrays
🧠 Trick:
Exactly K = atMost(K) - atMost(K-1)
📦 Sliding window + hashmap
📈 0 ms AC on a HARD problem!
#LeetCode #SlidingWindow #HashMap #100DaysOfCode #C++

Kushal Koradia

@Kushal_Koradia

. 9. 29.

✅ Day 106 of #150DaysOfDSA 📍 LC 2364: Count Number of Bad Pairs Count total pairs using n*(n-1)/2. Use a hashmap to track nums[i] - i values and count good pairs. Bad pairs = Total pairs - Good pairs. ⏱ O(n) | O(n) #HashMap #Math #150DaysOfDSA

Kushal_Koradia's tweet image. ✅ Day 106 of #150DaysOfDSA
📍 LC 2364: Count Number of Bad Pairs
Count total pairs using n*(n-1)/2.
Use a hashmap to track nums[i] - i values and count good pairs.
Bad pairs = Total pairs - Good pairs.
⏱ O(n) | O(n)
#HashMap #Math #150DaysOfDSA

Vtuber DevGod

@DevGod9

. 7. 6.

#Leetcode 1865, because nums1 array is only 1k elements at most, we can use nums 2 as a freqency map. Count method can then be a 1k element loop at worst. Add method can just reduce the previous freqs, and increment the new freqs from adding val to nums2. #JS #Hashmap #Design

DevGod9's tweet image. #Leetcode 1865, because nums1 array is only 1k elements at most, we can use nums 2 as a freqency map. Count method can then be a 1k element loop at worst. Add method can just reduce the previous freqs, and increment the new freqs from adding val to nums2. #JS #Hashmap #Design

Raphael Tannous

@raphael_tannous

14 시간

Today, I designed an X mockup by solving the challenge "355. Design Twitter" on LeetCode using Go! #Heap #Hashmap #LinkedList Happy LeetCoding!

raphael_tannous's tweet image. Today, I designed an X mockup by solving the challenge "355. Design Twitter" on LeetCode using Go! #Heap #Hashmap #LinkedList

Happy LeetCoding!

Kushal Koradia

@Kushal_Koradia

. 10. 12.

Siddhesh Rane

@SiddheshRane__

. 10. 9.

Finally completed all HashMap problems #LeetCode #Hash #hashmap

Gaurav

@gauravmawari18

. 10. 8.

Solved Insert Delete GetRandom O(1) 🎲 Used a combo of unordered_map + vector for O(1) insert, delete & random access 💡 Time Complexity: O(1) avg per operation #200DaysOfCode #LeetCode #HashMap #DSA #KeepCoding

gauravmawari18's tweet image. Solved Insert Delete GetRandom O(1) 🎲
Used a combo of unordered_map + vector for O(1) insert, delete &amp; random access 💡
Time Complexity: O(1) avg per operation
#200DaysOfCode #LeetCode #HashMap #DSA #KeepCoding

Kushal Koradia

@Kushal_Koradia

. 10. 6.

✅ Day 111 of #150DaysOfDSA 📍 LC 1207: Unique Number of Occurrences Solved using frequency counting + boolean tracking to ensure every element’s occurrence count is distinct. ⚡ 1 ms (Beats 99.91%) | 💾 42.38 MB #HashMap #Arrays #Logic #Java #LeetCode #Coding #100DaysOfCode 🚀

Kushal_Koradia's tweet image. ✅ Day 111 of #150DaysOfDSA
📍 LC 1207: Unique Number of Occurrences
Solved using frequency counting + boolean tracking to ensure every element’s occurrence count is distinct.
⚡ 1 ms (Beats 99.91%) | 💾 42.38 MB
#HashMap #Arrays #Logic #Java #LeetCode #Coding #100DaysOfCode 🚀

Oxpheus

@0xpheus

. 10. 2.

There are slightly different routes on how the accounts are manipulate, depending on where the accounts data resides. If the data was from cold storage, it is first converted to a #hashmap after transformation. Why? That's the ingenious part...

Kushal Koradia

@Kushal_Koradia

. 10. 1.

Kushal Koradia

@Kushal_Koradia

. 9. 29.

Pallav

@pallavcodes

. 9. 29.

TL;DR: HashMap is fast because it uses hashing + arrays under the hood. It handles collisions gracefully and powers many core DSA techniques. Once you truly understand it, you’ll start seeing it everywhere in your code. #Java #HashMap #DSA #Backend #SystemDesign #CodingTips

Pallav

@pallavcodes

. 9. 29.

Most developers use HashMap every day but very few understand how it actually works under the hood. Let’s break it down simply and also see where it’s most useful in DSA 👇 #Java #HashMap #SystemDesign #DSA #Backend

Saurav S Mehta

@sauravsmehta143

. 9. 25.

Day 55 of my #DSA journey: Revised heaps ✅ Started hashing 🔑 Learned #HashMap & explored its operations. Feeling more confident with key-value concepts 💻✨

sauravsmehta143's tweet image. Day 55 of my #DSA journey: Revised heaps ✅ Started hashing 🔑 Learned #HashMap &amp; explored its operations. Feeling more confident with key-value concepts 💻✨

Roshan Singh

@oRoshanSingh

. 9. 25.

Letter Combinations of a Phone: leetcode.com/problems/lette… My Solution: Time Complexity: O(4^N x N) Space Complexity: O(N) #LeetCode #Backtrack #Hashmap #DSA #Vector #String #CPP #Programming #CodingChallenge #Problem #Solution

oRoshanSingh's tweet image. Letter Combinations of a Phone: leetcode.com/problems/lette…

My Solution:
Time Complexity: O(4^N x N)
Space Complexity: O(N)

#LeetCode #Backtrack #Hashmap #DSA #Vector #String #CPP #Programming #CodingChallenge #Problem #Solution

JAVAPRO

@JAVAPROmagazin

. 9. 23.

Wenn hashCode(), lügt wird die #HashMap inkonsistent. Im sicherheitskritischen Bereich fatal: Lookup-Ausfall, Authorization Bypass, Resource Lock Hijack — alles möglich. @SvenRuppert liefert eine genaue Analyse mit interaktiver #Vaadin-Demo: javapro.io/de/wenn-hashco… #JavaSecurity

JAVAPROmagazin's tweet card. Ein tiefer Blick in Java’s HashMap-Fallen – visuell demonstriert mit Vaadin Flow Die stille Gefahr in der Standardbibliothek…

Wenn hashCode() lügt und equals() hilflos ist - JAVAPRO Germany

출처: javapro.io

JAIKUMAR DEWANGAN

@JAI_KUMAR_007

. 9. 23.

$hashmap_uh's profile picture. ~ cs \ 2x hackthons \ cp \ gym \ prev full stack intern @MaximizeGlobal$

hashmap_uh

@hashmap_uh

hashmap

@mistletoe__x

hashmap

@Webzrg

hashmap

@flagbundle

tsuyoshi suzuki

@HashmapJp

hashmap

@hashmap

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@hashmap_app

dtok

@hashmap1024

.

@local_hashmap

HashMap

@HashMapApp

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@list_chen19564

HashMap

@HashMap7

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@Hashmap13Map

Arjun

@hashmapTheBest

Ram

@hashmap_

HashMap

@HashMap77

Hashmap555 555

@hashmap999

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@Hashmap5555

Kristina Hashmap

@KristinaHashmap

hashmap

@I128769

hashmap

@hashmap14

Hashmap

@Hashmap16

HashMap

@hash_map_

Hashmap555 555

@hashmap8555

hashmap

@hashhmap

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@tempHash

We Hashmap

@WEhashmap

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@HashMap13

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@Hashmap115731

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@HashMapByDemo

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@Company_Hashmap

HashMap TV

@HashMapTv

Nikhil Suvarna

@hashmap0x012

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@HashMap147338

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@Hashmap985555

hashmap

@hashmapatlanta

John Thompson

@hashmap123

Hashmap555 555

@hashmap555

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@CoolerThanHaha

Dawson

@hashmap24

random_hashmap

@random_hashmap

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@hashmap003

omega64

@use_a_hashmap

hash

@hash_hashmap

HashMap

@HashMap__

子超

@hashmap666

hashmap

@cuotuosuiyue3

HashMap

@Small__Waste

John C

@hashmap256

HashMap

@map_hash

Nikhil Shaw

@nikhilshaw575

. 9. 14.

Used #HashMap , #HashSet for Today's POTD @LeetCode #LeetCode #java

Kushal Koradia

@Kushal_Koradia

. 10. 1.

Sumit Kumar

@SumitKumar9128

. 7. 19.

Nikhil Shaw

@nikhilshaw575

. 5. 18.

just revisited #HashMap generic Thanks @kunalstwt for your Dsa playlist.

Vtuber DevGod

@DevGod9

. 9. 19.

#Leetcode 3484, just some simple builtin map functions for get & set. Plus some simple string parsing for the formula solving. Don't initalize an entire matrix for the spreadsheet, when you can just have a small hashmap instead :) #JS #Hashmap #InterviewPrep