https://leetcode.com/problems/furthest-building-you-can-reach/description

Max index to climb diff = a[i +1] - a[i] > 0 using bricks -= diff and ladders-- for each.

https://leetcode.com/problems/meeting-rooms-iii/description

Most frequent room of 0..<n where each meeting[i]=[start, end) takes or delays until first available.

https://leetcode.com/problems/power-of-two/description/

Is number 2^x?

Congrats for all the earners!

https://leetcode.com/problems/missing-number/description/

Missing in [0..n] number.

https://leetcode.com/problems/bitwise-and-of-numbers-range/description

Bitwise AND for [left..right].

https://leetcode.com/problems/find-the-town-judge/description/

Find who trusts nobody and everybody trusts him in [trust, trusted] array.

https://leetcode.com/problems/cheapest-flights-within-k-stops/description/

Cheapest travel src -> dst with at most k stops in a directed weighted graph.

https://leetcode.com/problems/find-all-people-with-secret/description/

Who knows 0 and firstPerson's secret after group meetings at times: [personA, personB, time].

https://leetcode.com/problems/greatest-common-divisor-traversal/description/

Are all numbers connected through gcd?

https://leetcode.com/problems/same-tree/description/

Are two binary trees equal?

another streak

https://leetcode.com/problems/diameter-of-binary-tree/description/

Max distance between any nodes in binary tree.

https://leetcode.com/problems/find-bottom-left-tree-value/description/

Leftmost node value of the last level of the Binary Tree.

https://leetcode.com/problems/even-odd-tree/description/

Binary tree levels are odd increasing and even decreasing.

still not to late to celebrate

https://leetcode.com/problems/maximum-odd-binary-number/description/

Max odd number string rearrangement.

https://leetcode.com/problems/squares-of-a-sorted-array/description/

Sorted squares.

https://leetcode.com/problems/remove-nth-node-from-end-of-list/description/

Remove `n`th node from the tail of linked list. #medium

https://leetcode.com/problems/bag-of-tokens/description/

Max score converting power to token[i] and token[i] to score. #medium

https://leetcode.com/problems/minimum-length-of-string-after-deleting-similar-ends/description/

Min length after trimming matching prefix-suffix several times. #medium