LeetCode

Math

0007-reverse-integer
0009-palindrome-number

Tree

1114-binary-search-tree-to-greater-sum-tree

Depth-First Search

1114-binary-search-tree-to-greater-sum-tree

Binary Search Tree

1114-binary-search-tree-to-greater-sum-tree

Binary Tree

1114-binary-search-tree-to-greater-sum-tree

LeetCode Topics

Math

0013-roman-to-integer
0066-plus-one
0258-add-digits
1013-fibonacci-number
1889-check-if-number-is-a-sum-of-powers-of-three
1993-sum-of-all-subset-xor-totals
2160-minimum-operations-to-make-a-uni-value-grid
2610-closest-prime-numbers-in-range
2998-count-symmetric-integers
3001-apply-operations-to-maximize-score
3201-distribute-candies-among-children-ii
3548-find-the-count-of-good-integers

Dynamic Programming

0005-longest-palindromic-substring
0416-partition-equal-subset-sum
0806-domino-and-tromino-tiling
1013-fibonacci-number
1170-shortest-common-supersequence
2262-solving-questions-with-brainpower
3233-maximize-the-number-of-partitions-after-operations

Recursion

0021-merge-two-sorted-lists
1013-fibonacci-number

Memoization

1013-fibonacci-number

String

0003-longest-substring-without-repeating-characters
0005-longest-palindromic-substring
0013-roman-to-integer
0242-valid-anagram
0768-partition-labels
1170-shortest-common-supersequence
1460-number-of-substrings-containing-all-three-characters
2337-remove-digit-from-number-to-maximize-result
2463-minimum-recolors-to-get-k-consecutive-black-blocks
3233-maximize-the-number-of-partitions-after-operations
3569-count-of-substrings-containing-every-vowel-and-k-consonants-ii

Greedy

0011-container-with-most-water
0768-partition-labels
2337-remove-digit-from-number-to-maximize-result
3001-apply-operations-to-maximize-score

Enumeration

1993-sum-of-all-subset-xor-totals
2337-remove-digit-from-number-to-maximize-result
2998-count-symmetric-integers
3201-distribute-candies-among-children-ii
3548-find-the-count-of-good-integers

Hash Table

0001-two-sum
0003-longest-substring-without-repeating-characters
0013-roman-to-integer
0217-contains-duplicate
0242-valid-anagram
0768-partition-labels
1218-lowest-common-ancestor-of-deepest-leaves
1460-number-of-substrings-containing-all-three-characters
2707-merge-two-2d-arrays-by-summing-values
2888-minimum-index-of-a-valid-split
3548-find-the-count-of-good-integers
3569-count-of-substrings-containing-every-vowel-and-k-consonants-ii

Linked List

0021-merge-two-sorted-lists

Array

0001-two-sum
0004-median-of-two-sorted-arrays
0011-container-with-most-water
0026-remove-duplicates-from-sorted-array
0035-search-insert-position
0066-plus-one
0167-two-sum-ii-input-array-is-sorted
0217-contains-duplicate
0416-partition-equal-subset-sum
0948-sort-an-array
1335-maximum-candies-allocated-to-k-children
1993-sum-of-all-subset-xor-totals
2048-build-array-from-permutation
2058-concatenation-of-array
2160-minimum-operations-to-make-a-uni-value-grid
2262-solving-questions-with-brainpower
2265-partition-array-according-to-given-pivot
2551-apply-operations-to-an-array
2614-maximum-count-of-positive-integer-and-negative-integer
2707-merge-two-2d-arrays-by-summing-values
2888-minimum-index-of-a-valid-split
3001-apply-operations-to-maximize-score
3154-maximum-value-of-an-ordered-triplet-i
3430-count-days-without-meetings
3483-alternating-groups-ii
3627-find-minimum-time-to-reach-last-room-i
3643-zero-array-transformation-ii
3657-check-if-grid-can-be-cut-into-sections

Divide and Conquer

0004-median-of-two-sorted-arrays
0948-sort-an-array

Sorting

0217-contains-duplicate
0242-valid-anagram
0948-sort-an-array
2160-minimum-operations-to-make-a-uni-value-grid
2888-minimum-index-of-a-valid-split
3001-apply-operations-to-maximize-score
3430-count-days-without-meetings
3657-check-if-grid-can-be-cut-into-sections

Heap (Priority Queue)

0948-sort-an-array
3627-find-minimum-time-to-reach-last-room-i

Merge Sort

0948-sort-an-array

Bucket Sort

0948-sort-an-array

Radix Sort

0948-sort-an-array

Counting Sort

0948-sort-an-array
2614-maximum-count-of-positive-integer-and-negative-integer

Sliding Window

0003-longest-substring-without-repeating-characters
1460-number-of-substrings-containing-all-three-characters
2463-minimum-recolors-to-get-k-consecutive-black-blocks
3483-alternating-groups-ii
3569-count-of-substrings-containing-every-vowel-and-k-consonants-ii

Binary Search

0004-median-of-two-sorted-arrays
0035-search-insert-position
0167-two-sum-ii-input-array-is-sorted
1335-maximum-candies-allocated-to-k-children
2614-maximum-count-of-positive-integer-and-negative-integer
3643-zero-array-transformation-ii

Simulation

0258-add-digits
2048-build-array-from-permutation
2058-concatenation-of-array
2265-partition-array-according-to-given-pivot
2551-apply-operations-to-an-array

Number Theory

0258-add-digits
2610-closest-prime-numbers-in-range
3001-apply-operations-to-maximize-score

Two Pointers

0005-longest-palindromic-substring
0011-container-with-most-water
0026-remove-duplicates-from-sorted-array
0167-two-sum-ii-input-array-is-sorted
0768-partition-labels
2265-partition-array-according-to-given-pivot
2551-apply-operations-to-an-array
2707-merge-two-2d-arrays-by-summing-values

Prefix Sum

3643-zero-array-transformation-ii

Matrix

2160-minimum-operations-to-make-a-uni-value-grid
3627-find-minimum-time-to-reach-last-room-i

Stack

3001-apply-operations-to-maximize-score

Monotonic Stack

3001-apply-operations-to-maximize-score

Tree

1218-lowest-common-ancestor-of-deepest-leaves

Depth-First Search

1218-lowest-common-ancestor-of-deepest-leaves

Breadth-First Search

1218-lowest-common-ancestor-of-deepest-leaves

Binary Tree

1218-lowest-common-ancestor-of-deepest-leaves

Backtracking

1993-sum-of-all-subset-xor-totals

Bit Manipulation

1993-sum-of-all-subset-xor-totals
3233-maximize-the-number-of-partitions-after-operations

Combinatorics

1993-sum-of-all-subset-xor-totals
3201-distribute-candies-among-children-ii
3548-find-the-count-of-good-integers

Graph

3627-find-minimum-time-to-reach-last-room-i

Shortest Path

3627-find-minimum-time-to-reach-last-room-i

Bitmask

3233-maximize-the-number-of-partitions-after-operations