🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Twitter: https://twitter.com/neetcode1 Discord: https://discord.gg/ddjKRXPqtk 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/buy-and-sell-crypto 0:00 - Read the problem 0:52 - Drawing solution 5:40 - Coding solution Leetcode 121 coding interview question #python #leetcode #neetcode Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission.