Codeforces 2300 Rated Problem Solved | The Child and Sequence | Advanced Segment Tree

In this video, we solve an 𝐚𝐝𝐯𝐚𝐧𝐜𝐞𝐝 𝐬𝐞𝐠𝐦𝐞𝐧𝐭 𝐭𝐫𝐞𝐞 𝐩𝐫𝐨𝐛𝐥𝐞𝐦 — “𝐓𝐡𝐞 𝐂𝐡𝐢𝐥𝐝 𝐚𝐧𝐝 𝐒𝐞𝐪𝐮𝐞𝐧𝐜𝐞” (𝐂𝐨𝐝𝐞𝐟𝐨𝐫𝐜𝐞𝐬 𝟐𝟑𝟎𝟎 𝐫𝐚𝐭𝐞𝐝).⁣⁣ This problem combines range sum queries, range modulo updates, and point updates all in one, making it a fantastic challenge to test your Segment Tree mastery.⁣⁣ ⁣⁣ 𝐖𝐡𝐚𝐭 𝐰𝐞 𝐜𝐨𝐯𝐞𝐫 𝐢𝐧 𝐭𝐡𝐢𝐬 𝐯𝐢𝐝𝐞𝐨:⁣⁣ ✅ Problem explanation and constraints breakdown⁣⁣ ✅ Why a normal approach fails & why segment tree is needed⁣⁣ ✅ Using segment tree with sum + max tracking⁣⁣ ✅ Handling operations efficiently:⁣⁣ - Range Sum Query⁣⁣ - Range Modulo Update⁣⁣ - Point Update⁣⁣ ⁣⁣ ✅ Full step-by-step code walkthrough in C++⁣⁣ ✅ Competitive programming tips & intuition for tackling 𝟐𝟑𝟎𝟎+ 𝐫𝐚𝐭𝐞𝐝 𝐩𝐫𝐨𝐛𝐥𝐞𝐦𝐬⁣⁣ ⁣⁣ By the end of this video, you’ll gain confidence in solving hard segment tree problems that frequently appear in 𝐂𝐨𝐝𝐞𝐟𝐨𝐫𝐜𝐞𝐬, 𝐀𝐭𝐂𝐨𝐝𝐞𝐫, 𝐚𝐧𝐝 𝐈𝐂𝐏𝐂 𝐜𝐨𝐧𝐭𝐞𝐬𝐭𝐬.⁣⁣ ⁣⁣⁣ 👉 𝐏𝐫𝐨𝐛𝐥𝐞𝐦 𝐋𝐢𝐧𝐤:⁣ https://codeforces.com/contest/438/problem/D⁣⁣ ⁣⁣⁣⁣ 🔗 𝐏𝐥𝐚𝐲𝐥𝐢𝐬𝐭: https://youtube.com/playlist?list=PLtfqa971vD5GTQjH9U0H6kiq9cQlFFa5k&si=YKuHrjhvmUlXoTBM⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣ ⁣⁣⁣⁣ 📌 Don’t forget to check the previous videos if you’re new to Segment Trees!⁣⁣⁣⁣ ⁣⁣⁣⁣ 💡 Perfect for:⁣⁣⁣⁣ - Competitive programmers⁣⁣⁣⁣ - Data structure & algorithms learners⁣⁣⁣⁣ - Coding interview prep⁣⁣⁣⁣ ⁣⁣⁣⁣ 📌 Watch this till the end to fully understand the intuition, not just the code.⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣ ⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣ 👉 Whether you are a beginner or looking to strengthen your problem-solving skills, this course will help you 𝐭𝐡𝐢𝐧𝐤 𝐥𝐢𝐤𝐞 𝐚 𝐜𝐨𝐦𝐩𝐞𝐭𝐢𝐭𝐢𝐯𝐞 𝐩𝐫𝐨𝐠𝐫𝐚𝐦𝐦𝐞𝐫 𝐚𝐧𝐝 𝐚𝐩𝐩𝐥𝐲 𝐬𝐞𝐠𝐦𝐞𝐧𝐭 𝐭𝐫𝐞𝐞 𝐜𝐨𝐧𝐟𝐢𝐝𝐞𝐧𝐭𝐥𝐲 𝐢𝐧 𝐜𝐨𝐧𝐭𝐞𝐬𝐭𝐬.⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣ ⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣ 👋 𝐖𝐞𝐥𝐜𝐨𝐦𝐞 𝐭𝐨 𝐭𝐡𝐞 𝐜𝐡𝐚𝐧𝐧𝐞𝐥!⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣ I create content on 𝐂𝐨𝐦𝐩𝐞𝐭𝐢𝐭𝐢𝐯𝐞 𝐏𝐫𝐨𝐠𝐫𝐚𝐦𝐦𝐢𝐧𝐠, 𝐃𝐚𝐭𝐚 𝐒𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞𝐬 & 𝐀𝐥𝐠𝐨𝐫𝐢𝐭𝐡𝐦𝐬 (𝐃𝐒𝐀), 𝐚𝐧𝐝 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐈𝐧𝐭𝐞𝐫𝐯𝐢𝐞𝐰 𝐏𝐫𝐞𝐩𝐚𝐫𝐚𝐭𝐢𝐨𝐧.⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣ If you find this video helpful, don’t forget to:⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣ 👍 Like the video⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣ 💬 Comment your doubts/questions (I reply to everyone!)⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣ 🔔 Subscribe and turn on notifications to never miss upcoming tutorials⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣ ⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣ 📌 Connect with me:⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣ 🐦 X: https://x.com/Yash_Poonia_⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣ 💼 LinkedIn: https://www.linkedin.com/in/yashpoonia/⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣ 💻 GitHub: https://github.com/yash7xm⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣ 🌐 Discord: https://discord.gg/cYeENy6C⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣ ⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣ #SegmentTree #Codeforces #CompetitiveProgramming #DSA #AdvancedDSA #RangeQueries #CodingInterview