Uploaded July 2020 | Updated September 2026, 2 days ago

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I attempted to explain my thought process of solving problems during this year's Facebook Hacker Cup Qualification Round! Thankfully, all of my solutions were correct in the end.

Second channel (William Lin ++): youtube.com/channel/UCL-s5-igta4aWXfXMmQHEow
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0:00:00 Introduction
0:01:50 Problem A
0:12:49 Problem B
0:21:03 Problem C
0:35:06 Problem D1 - Thinking
0:41:52 Problem D2 - Thinking
0:54:26 Problem D1 & D2 - Implementing
1:21:37 Conclusion