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This repository contains solutions to various LeetCode problems, which are commonly used in coding interviews.

leetcode.com
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ankan24/LeetCode-Solutions

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176 Commits
0001-two-sum
0001-two-sum
 
 
0020-valid-parentheses
0020-valid-parentheses
 
 
0021-merge-two-sorted-lists
0021-merge-two-sorted-lists
 
 
0027-remove-element
0027-remove-element
 
 
0028-find-the-index-of-the-first-occurrence-in-a-string
0028-find-the-index-of-the-first-occurrence-in-a-string
 
 
0031-next-permutation
0031-next-permutation
 
 
0033-search-in-rotated-sorted-array
0033-search-in-rotated-sorted-array
 
 
0034-find-first-and-last-position-of-element-in-sorted-array
0034-find-first-and-last-position-of-element-in-sorted-array
 
 
0046-permutations
0046-permutations
 
 
0058-length-of-last-word
0058-length-of-last-word
 
 
0070-climbing-stairs
0070-climbing-stairs
 
 
0083-remove-duplicates-from-sorted-list
0083-remove-duplicates-from-sorted-list
 
 
0098-validate-binary-search-tree
0098-validate-binary-search-tree
 
 
0100-same-tree
0100-same-tree
 
 
0104-maximum-depth-of-binary-tree
0104-maximum-depth-of-binary-tree
 
 
0111-minimum-depth-of-binary-tree
0111-minimum-depth-of-binary-tree
 
 
0121-best-time-to-buy-and-sell-stock
0121-best-time-to-buy-and-sell-stock
 
 
0125-valid-palindrome
0125-valid-palindrome
 
 
0135-candy
0135-candy
 
 
0136-single-number
0136-single-number
 
 
0141-linked-list-cycle
0141-linked-list-cycle
 
 
0142-linked-list-cycle-ii
0142-linked-list-cycle-ii
 
 
0151-reverse-words-in-a-string
0151-reverse-words-in-a-string
 
 
0153-find-minimum-in-rotated-sorted-array
0153-find-minimum-in-rotated-sorted-array
 
 
0169-majority-element
0169-majority-element
 
 
0175-combine-two-tables
0175-combine-two-tables
 
 
0202-happy-number
0202-happy-number
 
 
0203-remove-linked-list-elements
0203-remove-linked-list-elements
 
 
0206-reverse-linked-list
0206-reverse-linked-list
 
 
0215-kth-largest-element-in-an-array
0215-kth-largest-element-in-an-array
 
 
0217-contains-duplicate
0217-contains-duplicate
 
 
0226-invert-binary-tree
0226-invert-binary-tree
 
 
0228-summary-ranges
0228-summary-ranges
 
 
0229-majority-element-ii
0229-majority-element-ii
 
 
0230-kth-smallest-element-in-a-bst
0230-kth-smallest-element-in-a-bst
 
 
0234-palindrome-linked-list
0234-palindrome-linked-list
 
 
0235-lowest-common-ancestor-of-a-binary-search-tree
0235-lowest-common-ancestor-of-a-binary-search-tree
 
 
0236-lowest-common-ancestor-of-a-binary-tree
0236-lowest-common-ancestor-of-a-binary-tree
 
 
0238-product-of-array-except-self
0238-product-of-array-except-self
 
 
0268-missing-number
0268-missing-number
 
 
0283-move-zeroes
0283-move-zeroes
 
 
0287-find-the-duplicate-number
0287-find-the-duplicate-number
 
 
0303-range-sum-query-immutable
0303-range-sum-query-immutable
 
 
0326-power-of-three
0326-power-of-three
 
 
0338-counting-bits
0338-counting-bits
 
 
0344-reverse-string
0344-reverse-string
 
 
0349-intersection-of-two-arrays
0349-intersection-of-two-arrays
 
 
0387-first-unique-character-in-a-string
0387-first-unique-character-in-a-string
 
 
0392-is-subsequence
0392-is-subsequence
 
 
0442-find-all-duplicates-in-an-array
0442-find-all-duplicates-in-an-array
 
 
0448-find-all-numbers-disappeared-in-an-array
0448-find-all-numbers-disappeared-in-an-array
 
 
0476-number-complement
0476-number-complement
 
 
0532-k-diff-pairs-in-an-array
0532-k-diff-pairs-in-an-array
 
 
0637-average-of-levels-in-binary-tree
0637-average-of-levels-in-binary-tree
 
 
0661-image-smoother
0661-image-smoother
 
 
0704-binary-search
0704-binary-search
 
 
0744-find-smallest-letter-greater-than-target
0744-find-smallest-letter-greater-than-target
 
 
0876-middle-of-the-linked-list
0876-middle-of-the-linked-list
 
 
0977-squares-of-a-sorted-array
0977-squares-of-a-sorted-array
 
 
1021-remove-outermost-parentheses
1021-remove-outermost-parentheses
 
 
1143-longest-common-subsequence
1143-longest-common-subsequence
 
 
1684-count-the-number-of-consistent-strings
1684-count-the-number-of-consistent-strings
 
 
2914-minimum-number-of-changes-to-make-binary-string-beautiful
2914-minimum-number-of-changes-to-make-binary-string-beautiful
 
 
README.md
README.md
 
 
stats.json
stats.json
 
 

Repository files navigation

A collection of LeetCode questions to ace the coding interview!

LeetCode Topics

Array
0001-two-sum
0121-best-time-to-buy-and-sell-stock
0228-summary-ranges
0532-k-diff-pairs-in-an-array
0661-image-smoother

Hash Table
0001-two-sum
0387-first-unique-character-in-a-string
0532-k-diff-pairs-in-an-array

Dynamic Programming
0121-best-time-to-buy-and-sell-stock

Matrix
0661-image-smoother

String
0020-valid-parentheses
0028-find-the-index-of-the-first-occurrence-in-a-string
0058-length-of-last-word
0125-valid-palindrome
0344-reverse-string
0387-first-unique-character-in-a-string

Stack
0020-valid-parentheses

Two Pointers
0028-find-the-index-of-the-first-occurrence-in-a-string
0125-valid-palindrome
0344-reverse-string
0532-k-diff-pairs-in-an-array

String Matching
0028-find-the-index-of-the-first-occurrence-in-a-string

Bit Manipulation
0476-number-complement

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

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

Binary Search
0532-k-diff-pairs-in-an-array

Sorting
0532-k-diff-pairs-in-an-array

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This repository contains solutions to various LeetCode problems, which are commonly used in coding interviews.

leetcode.com

Topics

dsa dsa-algorithm dsa-learning-series dsa-practice dsalgo

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