LeetCode Topics

Two Pointers

0028-find-the-index-of-the-first-occurrence-in-a-string
3959-maximum-total-from-optimal-activation-order
3973-flip-square-submatrix-vertically

String

0028-find-the-index-of-the-first-occurrence-in-a-string
0072-edit-distance
0131-palindrome-partitioning
1508-longest-happy-prefix

String Matching

0028-find-the-index-of-the-first-occurrence-in-a-string
1508-longest-happy-prefix

Rolling Hash

1508-longest-happy-prefix

Hash Function

1508-longest-happy-prefix

Array

0152-maximum-product-subarray
0493-reverse-pairs
1669-minimum-cost-to-cut-a-stick
3277-find-the-number-of-ways-to-place-people-ii
3959-maximum-total-from-optimal-activation-order
3973-flip-square-submatrix-vertically

Dynamic Programming

0072-edit-distance
0131-palindrome-partitioning
0152-maximum-product-subarray
1669-minimum-cost-to-cut-a-stick

Sorting

1669-minimum-cost-to-cut-a-stick
3277-find-the-number-of-ways-to-place-people-ii
3959-maximum-total-from-optimal-activation-order

Backtracking

0131-palindrome-partitioning

Hash Table

0133-clone-graph

Depth-First Search

0133-clone-graph

Breadth-First Search

0133-clone-graph

Graph

0133-clone-graph

Binary Search

0493-reverse-pairs

Divide and Conquer

0493-reverse-pairs

Binary Indexed Tree

0493-reverse-pairs

Segment Tree

0493-reverse-pairs

Merge Sort

0493-reverse-pairs

Ordered Set

0493-reverse-pairs

Greedy

3959-maximum-total-from-optimal-activation-order

Heap (Priority Queue)

3959-maximum-total-from-optimal-activation-order

Matrix

3973-flip-square-submatrix-vertically

Math

3277-find-the-number-of-ways-to-place-people-ii
3830-find-closest-person

Geometry

3277-find-the-number-of-ways-to-place-people-ii

Enumeration

3277-find-the-number-of-ways-to-place-people-ii