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Srinivas Gubbala srinivaskcg

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srinivaskcg / LeetCodeQuestions.md
Created April 5, 2020 18:51 — forked from krishnadey30/LeetCodeQuestions.md
Curated List of Top 75 LeetCode
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srinivaskcg / regexCheatsheet.js
Created November 19, 2019 21:20 — forked from sarthology/regexCheatsheet.js
A regex cheatsheet 👩🏻‍💻 (by Catherine)
let regex;
/* matching a specific string */
regex = /hello/; // looks for the string between the forward slashes (case-sensitive)... matches "hello", "hello123", "123hello123", "123hello"; doesn't match for "hell0", "Hello"
regex = /hello/i; // looks for the string between the forward slashes (case-insensitive)... matches "hello", "HelLo", "123HelLO"
regex = /hello/g; // looks for multiple occurrences of string between the forward slashes...
/* wildcards */
regex = /h.llo/; // the "." matches any one character other than a new line character... matches "hello", "hallo" but not "h\nllo"
regex = /h.*llo/; // the "*" matches any character(s) zero or more times... matches "hello", "heeeeeello", "hllo", "hwarwareallo"
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srinivaskcg / The Technical Interview Cheat Sheet.md
Created June 15, 2018 21:41 — forked from tsiege/The Technical Interview Cheat Sheet.md
This is my technical interview cheat sheet. Feel free to fork it or do whatever you want with it. PLEASE let me know if there are any errors or if anything crucial is missing. I will add more links soon.

Studying for a Tech Interview Sucks, so Here's a Cheat Sheet to Help

This list is meant to be a both a quick guide and reference for further research into these topics. It's basically a summary of that comp sci course you never took or forgot about, so there's no way it can cover everything in depth. It also will be available as a gist on Github for everyone to edit and add to.

Data Structure Basics

###Array ####Definition:

  • Stores data elements based on an sequential, most commonly 0 based, index.
  • Based on tuples from set theory.
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srinivaskcg / latency.txt
Created May 28, 2018 08:51 — forked from jboner/latency.txt
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD
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srinivaskcg / EventStore.md
Last active September 26, 2016 16:24
System Demo for EventStore Database
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srinivaskcg / System Design.md
Created April 26, 2016 05:49 — forked from vasanthk/System Design.md
System Design Cheatsheet

#System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

##Basic Steps

  1. Clarify and agree on the scope of the system
  • User cases (description of sequences of events that, taken together, lead to a system doing something useful)
    • Who is going to use it?
    • How are they going to use it?
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srinivaskcg / build.sbt
Created December 8, 2015 06:41 — forked from mumoshu/build.sbt
DES and AES encryption in Scala
name := "DES and AES encryption in Scala"
version := "1.0"
scalaVersion := "2.9.1"
libraryDependencies += "commons-codec" % "commons-codec" % "1.6"