https://leetcode.com/problems/count-subarrays-where-max-element-appears-at-least-k-times/description/

Count subarrays with at least k array max in #medium

https://leetcode.com/problems/subarrays-with-k-different-integers/description/

Count subarrays with k distinct numbers #hard

https://leetcode.com/problems/count-subarrays-with-fixed-bounds/description/

Count subarrays of range minK..maxK #hard

Congrats everyone who grind this month💪

https://leetcode.com/problems/length-of-last-word/description/

Last word length #easy

https://leetcode.com/problems/isomorphic-strings/description/

Can map chars from one string to another? #easy

https://leetcode.com/problems/word-search/description/

Does grid have a word path? #medium

https://leetcode.com/problems/maximum-nesting-depth-of-the-parentheses/description/

Max nested parenthesis #easy

https://leetcode.com/problems/make-the-string-great/description/

Remove lowercase-uppercase pairs #easy

https://leetcode.com/problems/minimum-remove-to-make-valid-parentheses/description/

Remove minimum to make parenthesis valid #medium

https://leetcode.com/problems/valid-parenthesis-string/description/

Are parenthesis valid with wildcard? #medium

https://leetcode.com/problems/number-of-students-unable-to-eat-lunch/description/

First sandwitch not eaten by any while popped from a queue #easy

https://leetcode.com/problems/time-needed-to-buy-tickets/description/

Seconds to buy tickets by k-th person in a rotating 1 second queue #easy

Congrats for all passing 100 Days💯

https://leetcode.com/problems/reveal-cards-in-increasing-order/description/

Sort cards by rules: take top, next goes bottom #medium

https://leetcode.com/problems/remove-k-digits/description/

Minimum number after removing k digits #medium

https://leetcode.com/problems/trapping-rain-water/description/

Trap the water in area between vertical walls #hard

https://leetcode.com/problems/maximal-rectangle/description/

Max 1-only area in a 0-1 matrix #hard

https://leetcode.com/problems/sum-of-left-leaves/description/

Left-leaf sum in a Binary Tree #easy

https://leetcode.com/problems/sum-root-to-leaf-numbers/description/

Sum root-leaf numbers in a Binary Tree #medium

https://leetcode.com/problems/add-one-row-to-tree/description/

Insert nodes at the depth of the Binary Tree #medium