Top Tweets for #HashMap
From O(n²) to O(n): Replace Nested Loops with a HashMap in Java
https://t.co/RxV6ixznNz
#programming #hashmap
#100DaysOfCode - Day 21
🧠Total: 5.5 hr
📚DSA: 5.5 hr
🔹Smallest Index With Digit Sum Equal to Index
🔹Brace Expansion II
🔹Evaluate Bracket Pairs of a String
🔹Reverse Substrings Between Each Pair of Parentheses
#DSA #Java #LeetCode #Stack #Recursion #HashMap #StringBuilder
Day - 672
Solved a string parsing problem today ⚡
Used a hash map to replace bracket keys with their values and handled unknown keys with ?.
#1000DaysOfCode #LeetCode #DSA #Python #HashMap
🚀 #Day 237/100 – Check Level Anagrams in Binary Trees (@geeksforgeeks)
💡Key: Synchronized BFS on two queues. Frequency map per level → O(L) anagram check, no sorting.
⌛O(n) | O(n)
Consistency > Intensity. Keep pushing! 💪
#100DaysOfCode #DSA #BFS #Tree #HashMap #DAY237
🚀 DSA Journey – Day 15 💻
Today’s focus:
• Hashing & Map
• Key-Value Pairs
• Efficient Lookups
• LeetCode Practice
Solve some questions in leetcode
Learning. Practicing. Improving. 🔥
#DSA #Hashing #HashMap #LeetCode #CodingJourney
DSA Log #51
Solved LeetCode #904 – Fruit Into Baskets.
Time Complexity: O(n)
Space Complexity: O(1) — at most 3 fruit types are stored.
Another solid sliding window problem checked off.
#DSA #LeetCode #Java #SlidingWindow #HashMap #LearningInPublic
🚀 #Day 221/100 – Longest Subsequence with Adjacent Diff 1(@GeeksforGeeks)
💡 Key: For each x, check dp[x-1] & dp[x+1]. curr = 1 + max(len1, len2). Hash map → O(1) per element.
⌛ O(n) | O(n)
@CoderArmy #DSA #DP #HashMap #Subsequence #DAY221
![PankajB42550's tweet photo. 🚀 #Day 221/100 – Longest Subsequence with Adjacent Diff 1(@GeeksforGeeks)
💡 Key: For each x, check dp[x-1] & dp[x+1]. curr = 1 + max(len1, len2). Hash map → O(1) per element.
⌛ O(n) | O(n)
@CoderArmy #DSA #DP #HashMap #Subsequence #DAY221 https://t.co/oq0iAjdrNf](https://pbs.twimg.com/media/HRbCu-GaQAA2UXu.jpg)
![PankajB42550's tweet photo. 🚀 #Day 221/100 – Longest Subsequence with Adjacent Diff 1(@GeeksforGeeks)
💡 Key: For each x, check dp[x-1] & dp[x+1]. curr = 1 + max(len1, len2). Hash map → O(1) per element.
⌛ O(n) | O(n)
@CoderArmy #DSA #DP #HashMap #Subsequence #DAY221 https://t.co/oq0iAjdrNf](https://pbs.twimg.com/media/HRbCu-AagAA6uiq.jpg)
![PankajB42550's tweet photo. 🚀 #Day 221/100 – Longest Subsequence with Adjacent Diff 1(@GeeksforGeeks)
💡 Key: For each x, check dp[x-1] & dp[x+1]. curr = 1 + max(len1, len2). Hash map → O(1) per element.
⌛ O(n) | O(n)
@CoderArmy #DSA #DP #HashMap #Subsequence #DAY221 https://t.co/oq0iAjdrNf](https://pbs.twimg.com/media/HRbCu9xaEAAHLum.jpg)
Definitely one of the more challenging cache problems so far, but a great exercise in combining data structures.
#DSA #LeetCode #Java #LFUCache #HashMap #DoublyLinkedList #LearningInPublic
multiple data structures can work together efficiently.
#DSA #LeetCode #Java #LRUCache #HashMap #DoublyLinkedList #LearningInPublic
Just finished making a handwritten cheat sheet on HashMap internals in Java 📝
Covered hashing, buckets, collisions, linked lists, Red-Black trees, resizing & rehashing.
Hope it helps someone preparing for Java interviews! 🚀
Follow @quickcodex for more.
#Java #HashMap
Day 16 of #100DaysOfCode
✅ Length of Longest Subarray with at most K frequency
✅ Fruit Into Baskets
✅ Longest Consecutive Sequence
#DSA #Java #LeetCode #SlidingWindow #HashMap
🚀 Back to Coding - @ali_In_bits
• Solved LC - Top K Frequent Elements 📊
• Practiced HashMap + Heap and explored multiple approaches ⚡
• Strengthened frequency-based problem-solving 🧠
#100DaysOfCode #Java #DSA #HashMap #Heap #LeetCode
📅 Day 249/365 of #365DaysOfCode
💻 DSA: Solved 1 LeetCode problem:
Uncommon Words from Two Sentences
🧠 Learned:
Frequency maps for word counting.
#LeetCode #DSA #HashMap #Strings #ProblemSolving #365DaysOfCode #100DaysOfCode
🚀 Back to Coding - @ali_In_bits
• Solved Largest Subarray with Sum K & Longest Substring Without Repeating Characters 🚀
• Practiced Sliding Window + HashMap ⚡
• Improved optimization skills 🧠
#100DaysOfCode #Java #DSA #SlidingWindow #HashMap #LeetCode
📅 Day 239/365 of #365DaysOfCode
💻 DSA: Solved 1 LeetCode problem:
Count Common Words With One Occurrence
🧠 Learned:
Frequency maps for string comparison.
#LeetCode #DSA #HashMap #Strings #ProblemSolving #365DaysOfCode #100DaysOfCode
📅 Day 236/365 of #365DaysOfCode
💻 DSA: Solved 1 LeetCode problem:
Count Pairs That Form a Complete Day I
🧠 Learned:
Modular arithmetic with frequency counting.
#LeetCode #DSA #HashMap #Math #ProblemSolving #365DaysOfCode #100DaysOfCode
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