java-dsa-

java dsa journey

LeetCode Topics

Array

0001-two-sum
0004-median-of-two-sorted-arrays
0011-container-with-most-water
0033-search-in-rotated-sorted-array
0034-find-first-and-last-position-of-element-in-sorted-array
0042-trapping-rain-water
0053-maximum-subarray
0075-sort-colors
0153-find-minimum-in-rotated-sorted-array
0162-find-peak-element
0179-largest-number
0217-contains-duplicate
0704-binary-search
1046-last-stone-weight
1394-find-lucky-integer-in-an-array
2089-find-target-indices-after-sorting-array

Hash Table

0001-two-sum
0217-contains-duplicate
0242-valid-anagram
1394-find-lucky-integer-in-an-array

Counting

1394-find-lucky-integer-in-an-array

Binary Search

0004-median-of-two-sorted-arrays
0033-search-in-rotated-sorted-array
0034-find-first-and-last-position-of-element-in-sorted-array
0153-find-minimum-in-rotated-sorted-array
0162-find-peak-element
0704-binary-search
2089-find-target-indices-after-sorting-array

Math

0007-reverse-integer
0009-palindrome-number

Two Pointers

0011-container-with-most-water
0042-trapping-rain-water
0075-sort-colors

Greedy

0011-container-with-most-water
0179-largest-number

Sorting

0075-sort-colors
0179-largest-number
0217-contains-duplicate
0242-valid-anagram
2089-find-target-indices-after-sorting-array

String

0058-length-of-last-word
0179-largest-number
0242-valid-anagram

Divide and Conquer

0004-median-of-two-sorted-arrays
0053-maximum-subarray

Dynamic Programming

0042-trapping-rain-water
0053-maximum-subarray

Stack

0042-trapping-rain-water

Monotonic Stack

0042-trapping-rain-water

Heap (Priority Queue)

1046-last-stone-weight