https-github.com-Dhanush111

Collection of LeetCode questions to ace the coding interview!

LeetCode Topics

Array

0001-two-sum
0053-maximum-subarray
0238-product-of-array-except-self
0287-find-the-duplicate-number
0349-intersection-of-two-arrays
0448-find-all-numbers-disappeared-in-an-array
0485-max-consecutive-ones
1231-replace-elements-with-greatest-element-on-right-side
1482-how-many-numbers-are-smaller-than-the-current-number
1528-kids-with-the-greatest-number-of-candies
1580-shuffle-the-array
1833-find-the-highest-altitude
1944-truncate-sentence
2219-maximum-number-of-words-found-in-sentences
2231-find-first-palindromic-string-in-the-array
2714-left-and-right-sum-differences
2917-count-pairs-whose-sum-is-less-than-target
3194-find-words-containing-character
3476-find-minimum-operations-to-make-all-elements-divisible-by-three
3581-the-two-sneaky-numbers-of-digitville
3582-find-indices-of-stable-mountains

Two Pointers

0028-find-the-index-of-the-first-occurrence-in-a-string
0151-reverse-words-in-a-string
0234-palindrome-linked-list
0287-find-the-duplicate-number
0345-reverse-vowels-of-a-string
0349-intersection-of-two-arrays
0557-reverse-words-in-a-string-iii
0953-reverse-only-letters
1894-merge-strings-alternately
2128-reverse-prefix-of-word
2231-find-first-palindromic-string-in-the-array
2917-count-pairs-whose-sum-is-less-than-target

String

0013-roman-to-integer
0028-find-the-index-of-the-first-occurrence-in-a-string
0058-length-of-last-word
0151-reverse-words-in-a-string
0345-reverse-vowels-of-a-string
0459-repeated-substring-pattern
0557-reverse-words-in-a-string-iii
0782-jewels-and-stones
0953-reverse-only-letters
1205-defanging-an-ip-address
1797-goal-parser-interpretation
1894-merge-strings-alternately
1944-truncate-sentence
2128-reverse-prefix-of-word
2219-maximum-number-of-words-found-in-sentences
2231-find-first-palindromic-string-in-the-array
2886-faulty-keyboard
3194-find-words-containing-character
3379-score-of-a-string
3412-permutation-difference-between-two-strings
3617-find-the-original-typed-string-i

Hash Table

0001-two-sum
0013-roman-to-integer
0349-intersection-of-two-arrays
0448-find-all-numbers-disappeared-in-an-array
0782-jewels-and-stones
1482-how-many-numbers-are-smaller-than-the-current-number
3412-permutation-difference-between-two-strings
3581-the-two-sneaky-numbers-of-digitville

Sorting

0349-intersection-of-two-arrays
1482-how-many-numbers-are-smaller-than-the-current-number
2264-minimum-sum-of-four-digit-number-after-splitting-digits
2917-count-pairs-whose-sum-is-less-than-target

Counting

1482-how-many-numbers-are-smaller-than-the-current-number

Math

0007-reverse-integer
0013-roman-to-integer
1406-subtract-the-product-and-sum-of-digits-of-an-integer
2238-a-number-after-a-double-reversal
2264-minimum-sum-of-four-digit-number-after-splitting-digits
2491-smallest-even-multiple
2556-convert-the-temperature
2812-find-the-maximum-achievable-number
3172-divisible-and-non-divisible-sums-difference
3476-find-minimum-operations-to-make-all-elements-divisible-by-three
3581-the-two-sneaky-numbers-of-digitville

Divide and Conquer

0053-maximum-subarray

Dynamic Programming

0053-maximum-subarray

Linked List

0234-palindrome-linked-list

Stack

0234-palindrome-linked-list
2128-reverse-prefix-of-word

Recursion

0234-palindrome-linked-list

Prefix Sum

0238-product-of-array-except-self
1833-find-the-highest-altitude
2714-left-and-right-sum-differences

String Matching

0028-find-the-index-of-the-first-occurrence-in-a-string
0459-repeated-substring-pattern

Number Theory

2491-smallest-even-multiple

Binary Search

0287-find-the-duplicate-number
0349-intersection-of-two-arrays
2917-count-pairs-whose-sum-is-less-than-target

Graph

1916-find-center-of-star-graph

Greedy

2264-minimum-sum-of-four-digit-number-after-splitting-digits

Simulation

2886-faulty-keyboard

Bit Manipulation

0287-find-the-duplicate-number