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[System Design] Part#2: My notes on - How will you choose any component for System Design

This is kind of an addition to earlier “System design notes” medium post and I am creating a new post here , just dedicated to “how and why we choose any database/component for a system design purpose?”. I will try to add all my notes on why choice1 over choice2…

System Design Interview

5 min read

[System Design] Part#2: My notes on — How will you choose any component for System Design?

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[System Design/ OS]Part#1:System Design/OS (DevOps/SRE) Resources Collection

Below are my collection of resources to learn about system design/operating systems related concepts. As I continue on my journey of learning new things, I will keep on adding to this list ! :) Happy Learning !! p.s. I have created a new post dedicated to “Databases related notes w.r.t…

System Design Interview

3 min read

[System Design] Part#1: System Design/OS(DevOps/SRE) Resources

Aug 3

[Linux Internals] System Calls

System calls provide transition from ‘user space’ to ‘kernel space’; These are not just a routine calls. In newer systems, kernel code for system calls do exist inside the address space of the process itself ( top of the address space stack). process cant access them in general, but only…

Linux

2 min read

Aug 3

Personal Blog Sharing : [ Not a technical post]

Being Emotionally Vulnerable !! … We humans always thrive to connect to each other in some sort or form whether we acknowledge it or not. Still we see…medium.com Its just an attempt to connect two blogs of mine and sharing my other hobbies i.e. writing poems, life experiences, travel stories etc. Thanks for reading. Please note that most of the poems are in Kannada language [ https://en.wikipedia.org/wiki/Kannada]. Blog: https://medium.com/@shaila.hegde

Personal Blog

1 min read

Personal Blog Sharing : [ Not a technical post]

Being Emotionally Vulnerable !! …We humans always thrive to connect to each other in some sort or form whether we acknowledge it or not. Still we see…
medium.com

Its just an attempt to connect two blogs of mine and sharing my other hobbies i.e. writing poems, life experiences, travel stories etc. Thanks for reading. Please note that most of the poems are in Kannada language [ https://en.wikipedia.org/wiki/Kannada]. Blog: https://medium.com/@shaila.hegde

Jul 29

LeetCode 1244. Design A Leaderboard + StockTicker Problem

Design a Leaderboard class, which has 3 functions: addScore(playerId, score): Update the leaderboard by adding score to the given player's score. If there is no player with such id in the leaderboard, add him to the leaderboard with the given score. top(K): Return the score sum of the top K…

Stock Ticker

1 min read

Jul 28

LeetCode 155. MinStack

Design a stack that supports push, pop, top, and retrieving the minimum element in constant time. Implement the MinStack class: MinStack() initializes the stack object. void push(int val) pushes the element val onto the stack. void pop() removes the element on the top of the stack. int top() gets the…

Leetcode

2 min read

Jul 27

LeetCode 311. Sparse Matrix Multiplication

Given two sparse matrices A and B, return the result of AB. You may assume that A’s column number is equal to B’s row number. Example: Input: A = [ [ 1, 0, 0], [-1, 0, 3] ] B = [ [ 7, 0, 0 ], [ 0, 0, 0 ], [ 0, 0, 1 ] ] Output: | 1 0 0 | | 7 0 0 | | 7 0 0 | AB = | -1 0 3 | x | 0 0 0 | = | -7 0 3 | | 0 0 1 |

Sparse Matrix

1 min read

LeetCode 311. Sparse Matrix Multiplication

Given two sparse matrices A and B, return the result of AB.

You may assume that A’s column number is equal to B’s row number.

Example:

Input:A = [
  [ 1, 0, 0],
  [-1, 0, 3]
]B = [
  [ 7, 0, 0 ],
  [ 0, 0, 0 ],
  [ 0, 0, 1 ]
]Output:     |  1 0 0 |   | 7 0 0 |   |  7 0 0 |
AB = | -1 0 3 | x | 0 0 0 | = | -7 0 3 |
                  | 0 0 1 |

Jul 27

Binary Tree Types

Full Tree : A binary tree where every node has 0 or 2 children. Complete Tree: If all levels are completely filled except possibly the last level and the last level has all keys as left as possible.

Binary Tree

1 min read

Binary Tree Types

Full Tree : A binary tree where every node has 0 or 2 children.

Complete Tree: If all levels are completely filled except possibly the last level and the last level has all keys as left as possible.

Jul 27

Multi-threaded vs Multi-process parallelism : How to choose what's RIGHT ?

Multi-threading or Multi-processing , both are the ways to achieve multi-tasking in computer world. Process is instance of a program and threads live within the process sharing the same memory address space. So, how we decide which one to choose? For that, we need to understand one more thing : => Is it CPU bound or I/O…

Multithreading

2 min read

Multi-threaded vs Multi-process parallelism : How to choose what's RIGHT ?

Jul 26

Trie (Prefix Tree) implementation in Python

Trie structure : — * / \ c a / \ \ a o end / \ \ t r w / \ \ end end end

Trie

1 min read

Trie (Prefix Tree) implementation in Python

Trie structure :

          *
         / \ 
        c   a
       / \   \
      a   o   end
     / \   \
    t   r   w
   /     \   \
  end    end  end

[System Design] Part#2: My notes on - How will you choose any component for System Design

[System Design/ OS]Part#1:System Design/OS (DevOps/SRE) Resources Collection

[Linux Internals] System Calls

Personal Blog Sharing : [ Not a technical post]

Personal Blog Sharing : [ Not a technical post]

Being Emotionally Vulnerable !! …

We humans always thrive to connect to each other in some sort or form whether we acknowledge it or not. Still we see…

LeetCode 1244. Design A Leaderboard + StockTicker Problem

LeetCode 155. MinStack

LeetCode 311. Sparse Matrix Multiplication

LeetCode 311. Sparse Matrix Multiplication

Binary Tree Types

Binary Tree Types

Multi-threaded vs Multi-process parallelism : How to choose what's RIGHT ?

Trie (Prefix Tree) implementation in Python

Trie (Prefix Tree) implementation in Python

Trie structure :

svalak