Excited to share that I have successfully completed the Data Structures in Java course from CodeChef! Through this course, I strengthened my understanding of core data structures, algorithms, ...

I thought my Java logic was flawless. The CodeChef compiler entirely disagreed. ⭐️⭐️ The real story? Me getting completely humbled by TLEs because my code was embarrassingly slow. 🐌😤 I finally ...

Count positions where characters differ without '?' (fixed differences) and positions where at least one character is '?' (flexible differences). Minimum differences come from fixed mismatches, and ...