Amanullah Bashar

B. Tech (CSE) Undergraduate | JAVA Developer | DSA ~ JAVA | SQL | Curiosity to Explore and Experiment New Technologies ...

[Amanullah Bashar @beingbashar06]

#Day92 of #100DaysOfCodeChallenge

Solved Binary Tree and hashing-based problems today.

• Symmetric Tree
• Find the Length of the Longest Common Prefix
Day 92 done ✅

#100DaysOfCode #LeetCode #DSA #Java

[Amanullah Bashar @beingbashar06]

#Day91 of #100DaysOfCodeChallenge

Solved multiple Binary Tree and traversal problems today.

• Same Tree
• Invert Binary Tree
• Binary Tree Postorder Traversal
• Binary Tree Inorder Traversal
• Binary Tree Preorder Traversal
Day 91 done ✅

#100DaysOfCode #LeetCode #DSA

[Amanullah Bashar @beingbashar06]

🚀 300+ LeetCode Problems Solved & 100 Days Badge Achieved 💙

Some problems took minutes,
some took hours
but every day helped me improve my problem-solving and mindset.
✅ 300+ problems solved
✅ 100 Days Badge earned
#LeetCode #100DaysOfCode #DSA #Java #Coding #Programming

[Amanullah Bashar @beingbashar06]

#Day90 of #100DaysOfCodeChallenge

Solved multiple hashing and array-based problems today.

• Isomorphic Strings
• Find All Duplicates in an Array
• Majority Element II
Day 90 done ✅

#100DaysOfCode #LeetCode #DSA #Java

[Amanullah Bashar @beingbashar06]

#Day89 of #100DaysOfCodeChallenge

Solved multiple hashing problems today.

• Top K Frequent Ele
• Rotated Digits
• Sum of Primes Between No and Its Rer
• Longest Substring Without Repeating Char
• Copy List with Random Pointer
• Count Arr Pairs Divisible by K

Day 89 done

[Amanullah Bashar @beingbashar06]

#Day88 of #100DaysOfCodeChallenge

Solved multiple array, hashing, and heap-based problems today.

• Valid Anagram
• Container With Most Water
• Relative Sort Array
• Kth Largest Element in an Array
Day 88 done ✅

#100DaysOfCode #LeetCode #DSA #Java

[Amanullah Bashar @beingbashar06]

@tr1ckastley respect bro

[Amanullah Bashar @beingbashar06]

#Day87 of #100DaysOfCodeChallenge

Solved multiple queue, stack problems today.

• Find the Winner of the Circular Game
• Count Elements With Maximum Frequency
• First Unique Character in a String
• Design Circular Queue
• Implement Stack using Queues

Day 87 done ✅

#DSA

[Amanullah Bashar @beingbashar06]

#Day86 of #100DaysOfCodeChallenge

Solved multiple stack-based.

• Min Stack
• Largest Rectangle in Histogram
• Next Greater Element I
• Validate Stack Sequences
• Count Symmetric Integers
• Sum of Squares of Special Elements
• First Matching Character From Both Ends
#DSA

[Amanullah Bashar @beingbashar06]

#Day85 of #100DaysOfCodeChallenge

Solved multiple array-based problems today.

• Apply Operations to an Array
• Minimum Absolute Difference Between Two Values
• The kth Factor of n
• Remove Duplicates from Sorted Array

Day 85 done ✅
#100DaysOfCode #LeetCode #DSA #Java

[Amanullah Bashar @beingbashar06]

#Day84 of #100DaysOfCodeChallenge

Solved a classic array problem today.

• Median of Two Sorted Arrays

Merge two sorted arrays using the two-pointer approach and compute the median based on total length.
Day 84 done ✅

#100DaysOfCode #LeetCode #DSA #Java #Arrays

[Amanullah Bashar @beingbashar06]

#Day83 of #100DaysOfCodeChallenge

Solved a challenging linked list problem today.

• Merge k Sorted Lists

Day 83 done ✅

#100DaysOfCode #LeetCode #DSA #Java #LinkedList #ProblemSolving

[Amanullah Bashar @beingbashar06]

@blunder_24 Very helpful tweet

[Amanullah Bashar @beingbashar06]

#Day82 of #100DaysOfCodeChallenge

Solved a challenging linked list problem today.

• Reverse Nodes in k-Group

Day 82 done ✅

#100DaysOfCode #LeetCode #DSA #Java #LinkedList #ProblemSolving

[Amanullah Bashar @beingbashar06]

#Day81 of #100DaysOfCodeChallenge

Focused on array traversal and prefix-sum style problems today.

• Complement of Base 10 Integer
• Running Sum of 1D Array
• Find Pivot Index
• Find the Middle Index in Array
• Smallest Index With Equal Value

Day 81 done ✅

#LeetCode #DSA

[Amanullah Bashar @beingbashar06]

#Day80 of #100DaysOfCodeChallenge

Solved a mix of binary string and math-based problems today.

• Find Unique Binary String
• Find if Digit Game Can Be Won
• Harshad Number
• Minimum Operations to Make All Elements Divisible by Three

Day 80 done ✅
#100DaysOfCode #LeetCode

[Amanullah Bashar @beingbashar06]

#Day79 of #100DaysOfCodeChallenge

Binary string pattern problems today.

• Check if Binary String Has at Most One Segment of Ones
• Longer Contiguous Segments of Ones than Zeros

Day 79 done ✅

#100DaysOfCode #LeetCode #DSA #Strings #Java #ProblemSolving

[Amanullah Bashar @beingbashar06]

#Day78 of #100DaysOfCodeChallenge

Binary search with tricky duplicates today.

• Find Minimum in Rotated Sorted Array II (Hard)

Handling duplicates makes the logic slightly tricky.

Day 78 done ✅

#100DaysOfCode #LeetCode #DSA #BinarySearch #Java #ProblemSolving

[Amanullah Bashar @beingbashar06]

#Day77 of #100DaysOfCodeChallenge

Binary search + monotonic stack today.

• Search in Rotated Sorted Array (Medium)
• Number of Visible People in a Queue (Hard)

Day 77 done ✅

#100DaysOfCode #LeetCode #DSA #BinarySearch #MonotonicStack #Java #ProblemSolving

[Amanullah Bashar @beingbashar06]

#Day76 of #100DaysOfCodeChallenge

Stack + greedy pattern recognition today.

• Next Greater Element II (Medium)

• Partitioning Into Minimum Deci-Binary Numbers (Medium)

Day 76 done ✅

#100DaysOfCode #LeetCode #DSA #Stack #Greedy #Java #ProblemSolving