A collection of solved LeetCode questions

LeetCode Topics

Array

0001-two-sum
0209-minimum-size-subarray-sum
0217-contains-duplicate
0219-contains-duplicate-ii
0594-longest-harmonious-subsequence
0643-maximum-average-subarray-i
0792-binary-search
2112-minimum-difference-between-highest-and-lowest-of-k-scores
2552-maximum-sum-of-distinct-subarrays-with-length-k

Hash Table

0001-two-sum
0003-longest-substring-without-repeating-characters
0217-contains-duplicate
0219-contains-duplicate-ii
0438-find-all-anagrams-in-a-string
0567-permutation-in-string
0594-longest-harmonious-subsequence
1987-substrings-of-size-three-with-distinct-characters
2552-maximum-sum-of-distinct-subarrays-with-length-k

Sliding Window

0003-longest-substring-without-repeating-characters
0209-minimum-size-subarray-sum
0219-contains-duplicate-ii
0438-find-all-anagrams-in-a-string
0567-permutation-in-string
0594-longest-harmonious-subsequence
0643-maximum-average-subarray-i
1430-find-the-k-beauty-of-a-number
1987-substrings-of-size-three-with-distinct-characters
2112-minimum-difference-between-highest-and-lowest-of-k-scores
2552-maximum-sum-of-distinct-subarrays-with-length-k

String

0003-longest-substring-without-repeating-characters
0438-find-all-anagrams-in-a-string
0567-permutation-in-string
1430-find-the-k-beauty-of-a-number
1987-substrings-of-size-three-with-distinct-characters

Two Pointers

0567-permutation-in-string

Counting

0594-longest-harmonious-subsequence
1987-substrings-of-size-three-with-distinct-characters

Binary Search

0209-minimum-size-subarray-sum
0792-binary-search

Prefix Sum

0209-minimum-size-subarray-sum

Sorting

0217-contains-duplicate
0594-longest-harmonious-subsequence
2112-minimum-difference-between-highest-and-lowest-of-k-scores

Math

1430-find-the-k-beauty-of-a-number