Counting Pairs with Sums Divisible by K

This problem asks you to count all pairs in an array whose sum is divisible by K. 🔢 It’s fascinating to see how numbers combine to meet the divisibility condition! 😲 Even simple arrays can hide surprising patterns when you look at sums modulo K. ✨ Each pair contributes to the final count, and discovering them feels like solving a mini number puzzle. 💡 The challenge sharpens your logical reasoning and helps you spot relationships between numbers. 🚀 You’ll be amazed at how a few observations can uncover the hidden structure in the array. 🌟 A perfect problem for anyone who loves exploring number properties, patterns, and math-based coding challenges! 🔍