DSAlgo

A collection of LeetCode questions to ace the coding interview!

LeetCode Topics

Hash Table

0012-integer-to-roman
0217-contains-duplicate
0268-missing-number
0349-intersection-of-two-arrays
0560-subarray-sum-equals-k
1904-second-largest-digit-in-a-string

String

0008-string-to-integer-atoi
0012-integer-to-roman
0412-fizz-buzz
1904-second-largest-digit-in-a-string

Array

0026-remove-duplicates-from-sorted-array
0033-search-in-rotated-sorted-array
0034-find-first-and-last-position-of-element-in-sorted-array
0035-search-insert-position
0081-search-in-rotated-sorted-array-ii
0136-single-number
0189-rotate-array
0217-contains-duplicate
0268-missing-number
0283-move-zeroes
0349-intersection-of-two-arrays
0485-max-consecutive-ones
0540-single-element-in-a-sorted-array
0560-subarray-sum-equals-k
0605-can-place-flowers
0792-binary-search
1878-check-if-array-is-sorted-and-rotated

Two Pointers

0026-remove-duplicates-from-sorted-array
0189-rotate-array
0283-move-zeroes
0349-intersection-of-two-arrays
2481-strictly-palindromic-number

Math

0012-integer-to-roman
0069-sqrtx
0189-rotate-array
0231-power-of-two
0268-missing-number
0412-fizz-buzz
2481-strictly-palindromic-number

Binary Search

0033-search-in-rotated-sorted-array
0034-find-first-and-last-position-of-element-in-sorted-array
0035-search-insert-position
0069-sqrtx
0081-search-in-rotated-sorted-array-ii
0268-missing-number
0349-intersection-of-two-arrays
0540-single-element-in-a-sorted-array
0792-binary-search

Sorting

0217-contains-duplicate
0268-missing-number
0349-intersection-of-two-arrays

Bit Manipulation

0136-single-number
0231-power-of-two
0268-missing-number

Prefix Sum

0560-subarray-sum-equals-k

Brainteaser

2481-strictly-palindromic-number

Greedy

0605-can-place-flowers

Recursion

0231-power-of-two

Simulation

0412-fizz-buzz