Data-Structures-and-Algorithms

Data Structures and Algorithms Learn from Basic

Stack

• Stack
  • push
  • pop
  • peek
  • size
  • isEmpty
  • show
• using Dynamic Array
  • push
  • pop
  • peek
  • size
  • isEmpty
  • show

LinkedList

• LinkedList

  • insert
  • insertAtStart
  • insertAt
  • show

• double LinkedList

Problem

• Check if pair with the given Sum exists in Array

  • greedy approuch
  • two pointers approch

• Best Time to Buy and Sell Stock

  • greedy approuch

• Find the two repeating elements in a given array

  • greedy approuch

Leetcode

• 1716

  • greedy approuch
  • o(N)

• 2591

  • solution 1st - 1-todo

• 1 - Two Sum

  • o(N)