48 docs tagged with "Leetcode Hard"

https://leetcode.com/problems/distinct-subsequences/

https://leetcode.com/problems/critical-connections-in-a-network/

https://leetcode.com/problems/count-vowels-permutation/

https://leetcode.com/problems/word-ladder-ii/

https://leetcode.com/problems/word-ladder/

Python

Python

Python

https://leetcode.com/problems/maximum-performance-of-a-team/

https://leetcode.com/problems/word-break-ii/

https://leetcode.com/problems/max-dot-product-of-two-subsequences

https://leetcode.com/problems/paint-house-iii/

https://leetcode.com/problems/max-points-on-a-line/description/

https://leetcode.com/problems/count-all-possible-routes/

https://leetcode.com/problems/maximum-number-of-achievable-transfer-requests/

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

https://leetcode.com/problems/maximum-number-of-events-that-can-be-attended-ii/

Python

https://leetcode.com/problems/best-time-to-buy-and-sell-stock-iv/

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

https://leetcode.com/problems/earliest-possible-day-of-full-bloom/

https://leetcode.com/problems/maximum-running-time-of-n-computers/

https://leetcode.com/problems/longest-path-with-different-adjacent-characters/description/

https://leetcode.com/problems/merge-k-sorted-lists/

https://leetcode.com/problems/naming-a-company/

https://leetcode.com/problems/reverse-nodes-in-k-group/

Python

https://leetcode.com/problems/serialize-and-deserialize-binary-tree

https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array/

https://leetcode.com/problems/longest-valid-parentheses/

https://leetcode.com/problems/longest-increasing-path-in-a-matrix/

https://leetcode.com/problems/palindrome-pairs/

https://leetcode.com/problems/russian-doll-envelopes/

Python

https://leetcode.com/problems/median-of-two-sorted-arrays/

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

https://leetcode.com/problems/poor-pigs/

Python

https://leetcode.com/problems/n-queens/

https://leetcode.com/problems/design-in-memory-file-system/

https://leetcode.com/contest/weekly-contest-315/problems/count-subarrays-with-fixed-bounds/

https://leetcode.com/problems/course-schedule-iii/

Python

https://leetcode.com/problems/edit-distance/

https://leetcode.com/problems/prefix-and-suffix-search/

Python

https://leetcode.com/problems/stamping-the-sequence/

https://leetcode.com/problems/vertical-order-traversal-of-a-binary-tree/