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About

This repository contains my code for implementing various Data Structures and solving common programming problems showcased on Leetcode & Hackerrank using Python.

LeetCode Topics

Array

0015-3sum
0042-trapping-rain-water
0084-largest-rectangle-in-histogram
0121-best-time-to-buy-and-sell-stock
0167-two-sum-ii-input-array-is-sorted
0739-daily-temperatures
0883-car-fleet

Two Pointers

0015-3sum
0042-trapping-rain-water
0167-two-sum-ii-input-array-is-sorted
0567-permutation-in-string

Dynamic Programming

0022-generate-parentheses
0042-trapping-rain-water
0121-best-time-to-buy-and-sell-stock

Stack

0042-trapping-rain-water
0084-largest-rectangle-in-histogram
0155-min-stack
0739-daily-temperatures
0883-car-fleet

Monotonic Stack

0042-trapping-rain-water
0084-largest-rectangle-in-histogram
0739-daily-temperatures
0883-car-fleet

Design

0155-min-stack

String

0003-longest-substring-without-repeating-characters
0022-generate-parentheses
0076-minimum-window-substring
0424-longest-repeating-character-replacement
0567-permutation-in-string

Backtracking

0022-generate-parentheses

Sorting

0015-3sum
0883-car-fleet

Hash Table

0003-longest-substring-without-repeating-characters
0076-minimum-window-substring
0424-longest-repeating-character-replacement
0567-permutation-in-string

Sliding Window

0003-longest-substring-without-repeating-characters
0076-minimum-window-substring
0424-longest-repeating-character-replacement
0567-permutation-in-string

Binary Search

0167-two-sum-ii-input-array-is-sorted

Tree

0230-kth-smallest-element-in-a-bst

Depth-First Search

0230-kth-smallest-element-in-a-bst

Binary Search Tree

0230-kth-smallest-element-in-a-bst

Binary Tree

0230-kth-smallest-element-in-a-bst

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