【伝説級の良問】高1でも解ける東大模試が衝撃すぎた

This is a question from the August 2024 Sundai University of Tokyo Mock Exam. While it's a short question, even those with high school freshman level knowledge can solve it! Integer Problems: All Patterns Explained    • 【整数問題】入試頻出解法を”４時間で”全パターン解説   Mod Patterns Explained    • 【整数問題】mod（合同式）をたった１本で全解説   🎁Exam LINE: Learn math, English, and other subjects you can't learn in school or on your own. Special lectures for aspiring to top universities are held free of charge every month on LINE! ↓Add us as a friend to receive information↓ https://lin.ee/MDha6aj Let's get on track together to get into your dream school!