Alert Using Same Key-Card Three or More Times in a One Hour Period | LeetCode 1604 | With Java Code

In this video I look at LeetCode problem 1604, Alert Using Same Key-Card Three or More Times in a One Hour Period. This problem involves converting the data to a usable form while using the correct data structure.

Explanation: 1:13
Code: 6:10
Complexity Analysis: 14:49

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