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Alex Mateo

Founder @ Expora — building the visual algorithm learning platform for developers preparing for coding interviews. Prev: full-stack engineer.

Joined on 
Every Backtracking Problem Is the Same Three Lines. I Just Couldn't See the Tree.
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Every Backtracking Problem Is the Same Three Lines. I Just Couldn't See the Tree.

#leetcode #career #coding #interview
3 min read
You Know the Coding Patterns. Why Do You Still Freeze in Interviews?
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You Know the Coding Patterns. Why Do You Still Freeze in Interviews?

#career #algorithms #beginners #programming
7 min read
The 7 Trigger Questions That Tell You Which Coding Pattern to Use
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The 7 Trigger Questions That Tell You Which Coding Pattern to Use

#algorithms #coding #programming #career
7 min read
Dynamic Programming for Coding Interviews: The Execution Gap Nobody Talks About
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Dynamic Programming for Coding Interviews: The Execution Gap Nobody Talks About

#programming #algorithms #coding #javascript
7 min read
Why Dynamic Programming Feels Impossible (And the 5 Patterns That Fix It)
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Why Dynamic Programming Feels Impossible (And the 5 Patterns That Fix It)

#algorithms #programming #leetcode #datastructures
4 min read
Sliding Window & Two Pointers: The Decision Framework Nobody Teaches You
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Sliding Window & Two Pointers: The Decision Framework Nobody Teaches You

#algorithms #programming #career #leetcode
7 min read
Graph Algorithms for Coding Interviews: When to Use BFS, DFS, or Dijkstra
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Graph Algorithms for Coding Interviews: When to Use BFS, DFS, or Dijkstra

#algorithms #programming #career #webdev
5 min read
Why LeetCode is So Hard — and Why Grinding More Problems Won't Help
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Why LeetCode is So Hard — and Why Grinding More Problems Won't Help

#algorithms #programming #career #productivity
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5 min read
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