LeetCode Spaced Repetition

https://leetcode.com/problems/kth-largest-element-in-an-array/editorial/?envType=study-plan-v2&envId=leetcode-75

do it in O(N) time

https://leetcode.com/problems/reorder-routes-to-make-all-paths-lead-to-the-city-zero/description

Implement iterative BFS

https://uplevel.interviewkickstart.com/resource/rc-codingproblem-772309-1295156-1097-6633-6418428

Implement iterate DFS

https://uplevel.interviewkickstart.com/resource/rc-codingproblem-772309-1295156-1097-6637-6418428

implement Recursive graph DFS

https://uplevel.interviewkickstart.com/resource/rc-codingproblem-772309-1295156-1097-6637-6418428

https://leetcode.com/problems/reverse-linked-list/description/?envType=study-plan-v2&envId=leetcode-75

https://leetcode.com/problems/combinations

https://leetcode.com/problems/insert-into-a-sorted-circular-linked-list/description/

https://leetcode.com/tag/topological-sort/