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Array

• Two Sum
• Best Time to Buy and Sell Stock
• Contains Duplicate
• Product of Array Except Self
• Maximum Subarray
• Maximum Product Subarray
• Find Minimum in Rotated Sorted Array

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C++ OOPS Concepts

The main aim of OOP is to bind together the data and the functions that operate on them so that no other part of the code can access this data except that function.

Characteristics of an Object Oriented Programming language

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• Two Sum (#1)
• Median of Two Sorted Arrays * (#4)
• Longest Palindromic Substring (#5)
• String to Integer (atoi) (#8)
• Integer to Roman (#12)
• Roman to Integer (#13)
• Valid Parentheses (#20)
• Merge K Sorted Lists (#23)
• Valid Sudoku (#36)
• Combination Sum (#39)

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Awesome Resources:

1. Hello 2015:

• http://codeforces.com/blog/entry/15473
• http://codeforces.com/gym/100571
• http://codeforces.com/gym/100570
• Editorial: http://codeforces.com/blog/entry/15722

2. Segment Trees:

• https://codeforces.com/blog/entry/22616 (Questions)
• http://codeforces.com/blog/entry/15890

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Command

• apropos

  apropos "remove files"

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Part 2:

GCD and LCM Euclid’s Algorithm

Tutorial

• Kanas Univ
• Khan's Academy

Other Study Sources

• Wikipedia
• Youtube - Learn Math Tutorials

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global:
    image:
        tag: 8.0.4
    identity:
      auth:
        publicIssuerUrl: "http://camundakeycloak.<domain>/auth/realms/camunda-platform"
        operate:
          redirectUrl: "http://operate.<domain>"
        optimize:
          redirectUrl: "http://optimize.<domain>"

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Project: Unit Test Framework

Organization: CHAPEL

Google Summer of Code, 2019

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Inheritance in Java:

Inheritance in Java is a mechanism in which one object acquires all the properties and behaviors of a parent object. When you inherit from an existing class, you can reuse methods and fields of the parent class. Moreover, you can add new methods and fields in your current class also.

Why use inheritance in java

• For Method Overriding (so runtime polymorphism can be achieved).
• For Code Reusability.

The syntax of Java Inheritance

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How To Install and Use PostgreSQL on Ubuntu

Step 1 — Installing PostgreSQL

sudo apt update
sudo apt install postgresql postgresql-contrib

Step 2 — Using PostgreSQL Roles and Databases