https://leetcode.com/problems/palindromic-substrings/description/

Count palindromes substrings.

https://leetcode.com/problems/cherry-pickup-ii/description/

Maximum paths sum of two robots top-down in XY grid.

https://leetcode.com/problems/majority-element/description/

Element with frequency > nums.len / 2.

https://leetcode.com/problems/find-first-palindromic-string-in-the-array/description/

Find a palindrome.

https://leetcode.com/problems/rearrange-array-elements-by-sign/description/

Rearrange array to positive-negative sequence.

https://leetcode.com/problems/find-polygon-with-the-largest-perimeter/description/

The largest subset sum(a[..i]) > a[i + 1] where a is a subset of array.

https://leetcode.com/problems/least-number-of-unique-integers-after-k-removals/description

Min uniq count after removing k numbers.

isn't it scary

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.