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# leetcode

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2078. Two Furthest Houses With Different Colors

2078. Two Furthest Houses With Different Colors

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4 min read
Pattern: sliding window (Variable window)

Pattern: sliding window (Variable window)

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1 min read
LeetCode 3548: Count Good Integers on Path — Digit DP Visualized Step by Step

LeetCode 3548: Count Good Integers on Path — Digit DP Visualized Step by Step

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4 min read
LeetCode 3549: Smallest Stable Index II — Step-by-Step Visual Trace

LeetCode 3549: Smallest Stable Index II — Step-by-Step Visual Trace

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1 min read
LeetCode 3547: Smallest Stable Index I — Step-by-Step Visual Trace

LeetCode 3547: Smallest Stable Index I — Step-by-Step Visual Trace

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1 min read
LeetCode 3550: Multi Source Flood Fill — Step-by-Step Visual Trace

LeetCode 3550: Multi Source Flood Fill — Step-by-Step Visual Trace

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1 min read
Maximizing 1s with a Single Flip: An Elegant Application of Kadane's Algorithm

Maximizing 1s with a Single Flip: An Elegant Application of Kadane's Algorithm

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3 min read
I Found LeetCode for Software Design, and It’s Awesome

I Found LeetCode for Software Design, and It’s Awesome

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8 min read
I Tried Two Pointers on a DP Problem and Learned What "Subset" Actually Means

I Tried Two Pointers on a DP Problem and Learned What "Subset" Actually Means

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6 min read
Leetcode # 107. Binary Tree Level Order Traversal II

Leetcode # 107. Binary Tree Level Order Traversal II

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2 min read
I Couldn't See Why dp[i] = dp[i+1] + dp[i+2] Actually Counts Anything

I Couldn't See Why dp[i] = dp[i+1] + dp[i+2] Actually Counts Anything

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6 min read
Algorithmic intuition matters more than problem count in coding interviews

Algorithmic intuition matters more than problem count in coding interviews

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7 min read
How to Prove Your Algorithm Works in a Coding Interview

How to Prove Your Algorithm Works in a Coding Interview

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6 min read
I built a free LeetCode visualizer. Here's what I learned making 207 problems animate line by line.

I built a free LeetCode visualizer. Here's what I learned making 207 problems animate line by line.

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2 min read
I Solved 200 LeetCode Problems and Still Froze in Interviews

I Solved 200 LeetCode Problems and Still Froze in Interviews

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5 min read
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