menu

Recent posts tagged coding-interview

Level UI • 23 hours • in Articles • 9 min read
An MCP server is not a new API. It is a thin layer over the one you already have
Somewhere in the last year, "do we need an MCP server?" joined the list of questions that arrive in a brief before anyone has said what the thing is for. It is usually framed as MCP vs API, as though the Model Context Protocol were a newer kind of AP...
post-cover-33074
  • ai
  • api
  • webdev
  • security
9 Reactions 7 Comments
James Dayalverified • Oct 9 • in Dev Stories • 10 min read
Beyond the Prompt: Igor Ganapolsky on Building Safer, More Reliable AI Agents
📝 DEV STORY
Featuring:Igor GanapolskyIgor Ganapolsky•Founder and Forward Deploy AI Engineer at ThumbGate
Interviewed by: Mehadi Hasanhttps://coderlegion.com/user/Mehadi+Hasan Guest: Igor Ganapolskyhttps://coderlegion.com/user/IgorGanapolsky Role: Founder & Forward Deploy AI Engineer, ThumbGate Location: Florida, USA Website: igorganapolsky.comht...
post-cover-30520
  • devstories
  • coding-interview
14 Reactions 2 Comments
Steven Stuart • Oct 8 • in Articles • 9 min read
Why LeetCode Interviews Measure the Wrong Thing
Coding tests can effectively filter out candidates who can't write working code. That's a legitimate purpose. The problem emerges when organizations test for timed algorithm-puzzle skills in roles that require entirely different capabilities: system ...
post-cover-30343
  • software-engineering
  • software-development
  • coding-interview
  • interview
0 Reactions 0 Comments
linkjobai-max • Sep 15 • in Articles • 5 min read
Real-Time AI Interview Help: Keeping Technical Answers Relevant as Questions Change
A technical interview rarely follows a straight line. You suggest a solution, the interviewer changes a constraint, and suddenly the most important part of your original answer no longer applies. The challenge is keeping your explanation aligned with...
post-cover-27239
  • ai
  • jobs
  • coding-interview
  • rust
6 Reactions 1 Comments
Frank-Four-Leaf • Aug 22 • in Articles • 6 min read
A SQL interview is a translation test, not a syntax test
Four-Leaf's SQL Interview Guide1 Key takeaways A SQL interview is a translation test. The syntax is the easy half, and most candidates who fail were fluent in SQL. What sinks them is starting to type before the question is pinned down, or writing a...
  • sql
  • coding-interview
  • datascience
5 Reactions 1 Comments
prakhar_srv • May 28 • in Articles • 4 min read
I Froze on Iterative Postorder. The Fix Was Understanding the Stack
I had written recursive preorder, inorder, and postorder more times than I could count, three lines and a base case each. Then an onsite asked for postorder without recursion, and I blanked, pushing nodes onto a stack and popping them in the wrong or...
post-cover-19164
  • programming
  • coding-interview
  • leetcode
  • learning
0 Reactions 0 Comments
prakhar_srv • May 26 • in Articles • 6 min read
I Solved 80 Tree Problems Before Binary Tree Recursion Clicked
I'd solved around 80 tree problems by the time my second on site interview wrapped up. Most were mediums. Preorder, inorder, postorder, level order felt like second nature. Tree height and BST validation, written from scratch, half a dozen times each...
post-cover-19004
  • algorithms
  • leetcode
  • coding-interview
  • programming
2 Reactions 0 Comments
prakhar_srv • May 25 • in Articles • 7 min read
What 40 Binary Tree Problems Didn't Teach Me Before My FAANG Interview
The tree round on my first onsite was Root to Leaf Paths. Enumerate every root-to-leaf path in a binary tree. Looked easy. The recursion took about four minutes to write. Running it on the sample input came back with a list where every path ended at ...
post-cover-18882
  • coding-interview
  • algorithms
  • leetcode
  • programming
1 Reactions 2 Comments
prakhar_srv • May 25 • in Articles • 7 min read
What I Wish I'd Known About Binary Search Trees Before Interviews
Three months of practicing binary search trees on paper. Search procedure memorised. Insertion procedure memorised. Three deletion cases memorised. Then came the onsite. The interviewer drew a tree on the whiteboard, asked for an insertion walkthroug...
post-cover-18867
  • coding-interview
  • leetcode
  • algorithms
  • beginner
0 Reactions 0 Comments
prakhar_srv • May 23 • in Articles • 5 min read
Big O Notation: What I Wish I'd Known Before My First Interview
The Big O table was memorised before the first onsite. Binary search logarithmic, merge sort linearithmic, hash insert constant amortised. All recitable. Then a senior engineer wrote a recursive function on the whiteboard, asked for an analysis, and ...
post-cover-18747
  • leetcode
  • coding-interview
  • algorithms
  • beginner
2 Reactions 0 Comments
prakhar_srv • May 22 • in Articles • 3 min read
BFS vs DFS? The Question That Fixed My Graph Solutions
For a long time I treated BFS and DFS as interchangeable. Two ways to visit every node, pick whichever came to mind first. Then an interview handed me a grid that wanted the minimum number of steps, and a recursive DFS felt faster to type, so that's ...
post-cover-18704
  • leetcode
  • coding-interview
  • algorithms
  • dsa
0 Reactions 0 Comments
prakhar_srv • May 21 • in Articles • 5 min read
Backtracking Finally Clicked When I Fixed One Habit
For a long stretch, backtracking was the topic I quietly dreaded. The recursion was easy enough to write. The code ran. It even returned answers. They were just wrong, and not in a way that threw an error you could chase. A Combination Sum solution w...
post-cover-18581
  • leetcode
  • coding-interview
  • algorithms
  • data-structures
3 Reactions 0 Comments
yogirahul • May 21 • in Articles • 1 min read
Most Candidates Memorize Merge Intervals. Few Actually Understand It.
Recently while practicing interval problems, I noticed something interesting: A lot of interview questions are actually small twists of the same underlying pattern. Take the classic Merge Intervals problem: intervals = 1,3, 2,5, 6,8, 7,9 The fir...
post-cover-18565
  • python
  • algorithms
  • systemdesign
  • coding-interview
3 Reactions 1 Comments
prakhar_srv • May 20 • in Articles • 3 min read
AVL Trees Explained: The Rotation Patterns Most People Memorise Wrong
The first time an interviewer asked me to walk through an LR rotation on a whiteboard, the four-case table was memorised cold. LL, RR, LR, RL. The interviewer drew three nodes, asked which case it was, and the answer came out fast. Then they asked: "...
post-cover-18486
  • algorithms
  • coding-interview
  • leetcode
  • data-structures
4 Reactions 2 Comments
Posted in open-fintech-builders group
Pocket Portfolio • May 18 • in Articles • 3 min read
Interview: Pocket Portfolio × CoderLegion
Interview: Pocket Portfolio × CoderLegion 1. An Overview of Your Professional Trajectory in Software Development My introduction to programming commenced at age fifteen with Java, spanning from Standard to Enterprise editions J2SE to J2EE at Emerg...
post-cover-18220
  • coderlegion
  • programming
  • coding-interview
  • webdev
8 Reactions 0 Comments
prakhar_srv • May 12 • in Articles • 6 min read
FAANG Coding Interviews Aren’t the Same: The DSA Patterns Each Company Actually Tests
After treating every FAANG company like the same interview, Amazon exposed the gap in about twenty minutes. I'd built FAANG prep around a small set of pattern families that looked highest-frequency: predicate search, sliding window, hash table funda...
post-cover-17592
  • coding-interview
  • algorithms
  • dsa
  • leetcode
0 Reactions 0 Comments
prakhar_srv • May 11 • in Articles • 7 min read
What Amazon’s Bar Raiser Actually Tests in Coding Interviews
I thought solving the problem was the round. The last ten minutes turned out to be the part that counted. I'd put close to four months into Amazon prep by the time my onsite landed. Two coding rounds went fine. The third started fine too. I solved ...
post-cover-17439
  • leetcode
  • coding-interview
  • algorithms
  • career
1 Reactions 0 Comments
prakhar_srv • May 10 • in Articles • 5 min read
Arrays vs Linked Lists: The Real Difference Most Interview Prep Misses
It took an LRU Cache interview for me to realise the complexity table wasn't answering the real question. I'd been picking between arrays and linked lists for years before realising the table wasn't the answer to the question. Then LRU Cache came ...
post-cover-17281
  • dsa
  • leetcode
  • coding-interview
  • beginners
1 Reactions 2 Comments
prakhar_srv • May 9 • in Articles • 7 min read
How to Know If You’re Ready for FAANG Interviews
After 280 LeetCode problems, I realised “feeling ready” wasn’t a metric. A diagnostic was. I'd solved around 280 problems by the time the FAANG readiness question got serious, and the answer changed every week. Some weeks felt close after a clean ba...
post-cover-17163
  • leetcode
  • coding-interview
  • dsa
  • algorithms
2 Reactions 0 Comments
prakhar_srv • May 7 • in Articles • 6 min read
How to Recognize Which Algorithm a Coding Interview Problem Needs
I'd solved around 300 problems by the time my third senior screen wrapped up. The medium that had just bombed the call was something I could explain back to myself in 90 seconds once it ended. The constraints were familiar. The technique was one anyo...
post-cover-16965
  • programming
  • leetcode
  • coding-interview
  • algorithms
0 Reactions 0 Comments
prakhar_srv • May 6 • in Articles • 5 min read
How to Explain Algorithm Correctness in Coding Interviews
I'd written the BFS in about eight minutes. The interviewer ran the example I'd traced and said "ok, but how do you know this is right for any input?" My instinct was to point at the code. Pointing wasn't an argument. The silence stretched, and the r...
post-cover-16892
  • programming
  • coding-interview
  • leetcode
  • algorithms
1 Reactions 0 Comments
Page:
chevron_left
🔥 30 posts • 👩‍💻 12 active writers
✨ Want to write in this topic?
Share your learning. Get discovered. Build your profile.
Join CoderLegion
💡 Why developers use CoderLegion
Track learning • Share posts • Get ranked publicly
Create your profile