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M Umair Ullah

Solving DSA, Crafting Code, and Contributing to the Future.

Location Multan, Pakistan. Joined Joined on  github website

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study nerd

🔑 “Mastering Strings in Competitive Programming: Algorithms, Challenges & Solutions”

🔑 “Mastering Strings in Competitive Programming: Algorithms, Challenges & Solutions”

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3 min read
Binary Search on Answers — Crack the Hardest Problems in Log Time

Binary Search on Answers — Crack the Hardest Problems in Log Time

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3 min read
The Logic Behind 0s, 1s, and 2s (DNF)

The Logic Behind 0s, 1s, and 2s (DNF)

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3 min read
What I Wish I Knew Before Learning the Two Pointer Algorithm

What I Wish I Knew Before Learning the Two Pointer Algorithm

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3 min read
From Brute Force to Kadane’s: Solving the Maximum Subarray Problem Efficiently

From Brute Force to Kadane’s: Solving the Maximum Subarray Problem Efficiently

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2 min read
🧠 Sliding Window Pattern: The Secret Sauce for Efficient Algorithms

🧠 Sliding Window Pattern: The Secret Sauce for Efficient Algorithms

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2 min read
⏱️ O(N) to O(1): How Prefix Sum Will Change Your Code Forever

⏱️ O(N) to O(1): How Prefix Sum Will Change Your Code Forever

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2 min read
Maximum sum rectangle in a 2D matrix.

Maximum sum rectangle in a 2D matrix.

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2 min read
LC:370 Range Addition.

LC:370 Range Addition.

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2 min read
Subarray Sum Divisible By K.

Subarray Sum Divisible By K.

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2 min read
Max Consecutive Ones III

Max Consecutive Ones III

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2 min read
525.Contiguous Array.

525.Contiguous Array.

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2 min read
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