LeetCode

LeetCode Topics

Array

0001-two-sum
0015-3sum
0066-plus-one
0088-merge-sorted-array
0121-best-time-to-buy-and-sell-stock
0136-single-number
0179-largest-number
0665-non-decreasing-array

Hash Table

0001-two-sum
0012-integer-to-roman
0013-roman-to-integer

Math

0009-palindrome-number
0012-integer-to-roman
0013-roman-to-integer
0066-plus-one
0415-add-strings

String

0012-integer-to-roman
0013-roman-to-integer
0014-longest-common-prefix
0058-length-of-last-word
0179-largest-number
0344-reverse-string
0392-is-subsequence
0415-add-strings
1567-maximum-number-of-vowels-in-a-substring-of-given-length

Sliding Window

1567-maximum-number-of-vowels-in-a-substring-of-given-length

Trie

0014-longest-common-prefix

Two Pointers

0015-3sum
0088-merge-sorted-array
0344-reverse-string
0392-is-subsequence

Sorting

0015-3sum
0088-merge-sorted-array
0179-largest-number

Dynamic Programming

0121-best-time-to-buy-and-sell-stock
0392-is-subsequence

Greedy

0179-largest-number

Simulation

0415-add-strings

Bit Manipulation

0136-single-number