Two solved, one WA, one lesson that will save me points in every future contest. Ten days of preparation. Graphs, binary search, sliding window, DP fundamentals. And then contest day arrives and Q1 is ...

Two days, six problems, one realization that changed how I see dynamic programming. I’ll be honest — I was nervous about DP. Not the same fear I had with binary search, something different. Binary ...

Day 3 was the heaviest graph day yet. Shortest path algorithms, spanning trees, DSU, and a genuinely tricky implementation problem to open with. Three days in and graphs are almost wrapped. Not ...

Cycle detection in directed graphs, topological sort, Kahn’s algorithm. These are the ones that feel simple until you’re implementing them and something quietly goes wrong. Same idea as BFS: try to ...

30 days. 4 contests. One shot at proving I actually know this stuff. I’ve been on Leetcode for a while. 194 problems solved, 104 active days, a max streak of 27. On paper, it looks decent. But my ...

12 problems, 4 patterns, one gap found. Honest day. Today felt different. Not because everything went perfectly — it didn’t — but because for the first time this week I finished an entire topic in a ...

Three days ago I sat down to study binary search and completely fell apart. I knew the logic. I’ve seen rotated arrays before. I’ve solved some of these problems in the past. And yet when I opened the ...

Welcome to the 200th article on python-hub.com! For this milestone, we’re bringing you something special as part of our Build & Challenge Series—a Real-Time Rock-Paper-Scissors Game in Python. For ...

So far we have seen labels, buttons, images, etc in Python’s built-in toolkit Tkinter. With any of the widgets, we were using a method called pack(). And if you are like me you would love to explore ...

Hello Pythonistas welcome back. Today we will continue our series CodeCraft: Building Skills One Project at a Time. So let’s get started, the second project in this series is a Number Guessing Game.

Welcome to Day Eight of my 21-day project series! Today, I have made a pretty simple and fun Number-Guessing Game In Python. It is not a GUI, not an AI. Just a simple guessing game. This mini-project ...