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LeetCode

A collection of LeetCode questions to ace the coding interview! - Created using LeetHub v2

LeetCode Topics

Math

0002-add-two-numbers
0067-add-binary
0069-sqrtx
0070-climbing-stairs
0189-rotate-array
0412-fizz-buzz
0423-reconstruct-original-digits-from-english
1444-number-of-steps-to-reduce-a-number-to-zero
2383-add-two-integers

Tree

0094-binary-tree-inorder-traversal
0100-same-tree
0104-maximum-depth-of-binary-tree
0111-minimum-depth-of-binary-tree
0112-path-sum
0222-count-complete-tree-nodes
2384-root-equals-sum-of-children

Binary Tree

0094-binary-tree-inorder-traversal
0100-same-tree
0104-maximum-depth-of-binary-tree
0111-minimum-depth-of-binary-tree
0112-path-sum
0222-count-complete-tree-nodes
2384-root-equals-sum-of-children

Array

0001-two-sum
0088-merge-sorted-array
0121-best-time-to-buy-and-sell-stock
0122-best-time-to-buy-and-sell-stock-ii
0136-single-number
0189-rotate-array
0643-maximum-average-subarray-i
0898-transpose-matrix
0941-sort-array-by-parity
1221-element-appearing-more-than-25-in-sorted-array
1584-average-salary-excluding-the-minimum-and-maximum-salary
1603-running-sum-of-1d-array
1791-richest-customer-wealth
1833-find-the-highest-altitude

Two Pointers

0005-longest-palindromic-substring
0088-merge-sorted-array
0189-rotate-array
0392-is-subsequence
0874-backspace-string-compare
0908-middle-of-the-linked-list
0941-sort-array-by-parity

Dynamic Programming

0005-longest-palindromic-substring
0032-longest-valid-parentheses
0070-climbing-stairs
0121-best-time-to-buy-and-sell-stock
0122-best-time-to-buy-and-sell-stock-ii
0392-is-subsequence
2191-minimum-number-of-food-buckets-to-feed-the-hamsters

Greedy

0122-best-time-to-buy-and-sell-stock-ii
2191-minimum-number-of-food-buckets-to-feed-the-hamsters

Matrix

0898-transpose-matrix
1791-richest-customer-wealth

Linked List

0002-add-two-numbers
0083-remove-duplicates-from-sorted-list
0908-middle-of-the-linked-list

Recursion

0002-add-two-numbers

Hash Table

0001-two-sum
0003-longest-substring-without-repeating-characters
0205-isomorphic-strings
0383-ransom-note
0387-first-unique-character-in-a-string
0423-reconstruct-original-digits-from-english
1264-maximum-number-of-words-you-can-type
2427-first-letter-to-appear-twice

String

0003-longest-substring-without-repeating-characters
0005-longest-palindromic-substring
0032-longest-valid-parentheses
0067-add-binary
0205-isomorphic-strings
0383-ransom-note
0387-first-unique-character-in-a-string
0392-is-subsequence
0412-fizz-buzz
0423-reconstruct-original-digits-from-english
0657-robot-return-to-origin
0874-backspace-string-compare
1205-defanging-an-ip-address
1264-maximum-number-of-words-you-can-type
1737-maximum-nesting-depth-of-the-parentheses
1797-goal-parser-interpretation
1812-reformat-phone-number
1999-longer-contiguous-segments-of-ones-than-zeros
2191-minimum-number-of-food-buckets-to-feed-the-hamsters
2427-first-letter-to-appear-twice

Sliding Window

0003-longest-substring-without-repeating-characters
0643-maximum-average-subarray-i

Database

0584-find-customer-referee
0586-customer-placing-the-largest-number-of-orders
0595-big-countries
0596-classes-more-than-5-students
1153-product-sales-analysis-i
1258-article-views-i
1509-replace-employee-id-with-the-unique-identifier
1827-invalid-tweets
1908-recyclable-and-low-fat-products

Bit Manipulation

0067-add-binary
0136-single-number
0222-count-complete-tree-nodes
1444-number-of-steps-to-reduce-a-number-to-zero
2427-first-letter-to-appear-twice

Counting

0383-ransom-note
0387-first-unique-character-in-a-string
2427-first-letter-to-appear-twice

Stack

0032-longest-valid-parentheses
0094-binary-tree-inorder-traversal
0874-backspace-string-compare
1737-maximum-nesting-depth-of-the-parentheses

Prefix Sum

1603-running-sum-of-1d-array
1833-find-the-highest-altitude

Depth-First Search

0094-binary-tree-inorder-traversal
0100-same-tree
0104-maximum-depth-of-binary-tree
0111-minimum-depth-of-binary-tree
0112-path-sum

Breadth-First Search

0100-same-tree
0104-maximum-depth-of-binary-tree
0111-minimum-depth-of-binary-tree
0112-path-sum

Simulation

0067-add-binary
0412-fizz-buzz
0657-robot-return-to-origin
0874-backspace-string-compare
0898-transpose-matrix

Binary Search

0069-sqrtx
0222-count-complete-tree-nodes

Queue

0387-first-unique-character-in-a-string

Sorting

0088-merge-sorted-array
0941-sort-array-by-parity
1584-average-salary-excluding-the-minimum-and-maximum-salary

Memoization

0070-climbing-stairs

About

A collection of LeetCode questions to ace the coding interview! - Created using [LeetHub v2](https://github.com/arunbhardwaj/LeetHub-2.0)

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