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How I Got Selected at MNC

Virtusa Sometimes success does not come from having the best coding skills or the perfect roadmap. Sometimes it comes from simply refusing to quit. This is the honest story of how I transitioned from a confused, rejected fresher to getting selected as an Associate Engineer at Virtusa. The Beginning: Confused About My Future After completing my graduation, I stared blankly at my career options. Like many freshers, I lacked a clear direction. Should I join a Java course? Should I prepare on my own? Should I just wait for campus placement opportunities? One day, I called my friend Chetan. He suggested I join Naresh i Technologies and start learning Java seriously. Still unsure of my path, I told him I needed time to think about it. A couple of days later, my phone buzzed with a WhatsApp message offering a job opportunity. They asked me to come for the next round of the recruitment process. Excitement completely took over. I packed my bags, traveled to th...

Greedy Algorithms

Greedy Algorithms: Making the Best Local Choice Many computer science students fundamentally confuse Greedy Algorithms, Dynamic Programming, and Backtracking. This happens because developers use all three techniques to solve optimization problems (finding the maximum profit, minimum cost, or shortest path). However, the way they approach the solution differs entirely. Technique Decision Making Process Greedy Makes the absolute best choice available right now, ignoring future consequences. Dynamic Programming Evaluates all possibilities, caches the results, and combines them to find the true optimal answer. Backtracking Tries every single path. If a path fails, it undoes the decision and explores a different route. What Exactly is a Greedy Algorithm? A Greedy Algor...

Strings in C

C Programming: Working with Strings Unlike modern programming languages like Python or Java, C does not possess a dedicated "String" data type. Instead, C treats a string as a simple 1D array of characters. Real-life example: Think of a freight train. The train does not exist as one solid object; it consists of individual boxcars linked together. Similarly, a C string links individual characters side-by-side in memory. To let the computer know the train has ended, C attaches a special "caboose" called the Null Terminator ( \0 ). 1. Essential String Functions Handling strings manually requires complex loops. To save time, C provides a built-in library called <string.h> that contains powerful functions to manipulate text. strlen(): You use this to find the exact length of a string. The compiler counts the characters until it hits the \0 terminator. It does not count the terminator itself. strcpy(): You ...