lvijay

// -*- mode: java; -*-

// Source code for the YouTube video: https://youtu.be/c4umDcNHBVs

// Start jshell in a GNU/Linux OS as follows (same instructions as
// the video)
/*
 * jshell --startup SelfModify.jsh
 */
// After starting jshell, 

lvijay

# Made for the YouTube video https://youtu.be/TFIxU_vOCR8

from itertools import count
import hashlib
import zlib

PREFIX = b'commit %d\x00'
COMMIT_TEMPLATE = b'tree 62ee7f49375b274e064e4277b10f044fca62f144\nparent e4fe1d2e9d8e123586da04c86cf74983ae399385\nauthor Vijay Lakshminarayanan <laksvij@hawk.iit.edu> 1597940579 +0530\ncommitter Vijay Lakshminarayanan <laksvij@hawk.iit.edu> 1597940579 +0530\n\ncommit #%d contains c0ffee\n'

    

lvijay

function csv2sqlitedb() {
  _FILENAME=$1
  _TABLENAME=$2
  echo "
.mode csv
.import \"${_FILENAME}\" ${_TABLENAME}
.save ${_TABLENAME}.db" | sqlite3
}

## Sample usage

lvijay

## Generate a video from a sequence of images

ffmpeg -framerate 2 -pattern_type glob -i '*.PNG' -c:v libx264 -pix_fmt yuv420p out.mp4

# framerate -- each frame will show on screen for 1/framerate seconds (in this case 1/2 = 0.5s)

lvijay

guilty :- true.
innocent :- false.

solve_inspector(Chase, Decker, Ellis, Heath, Mullaney):-
    % each individual is either innocent or guilty
    member(Chase,    [guilty, innocent]),
    member(Decker,   [guilty, innocent]),
    member(Ellis,    [guilty, innocent]),
    member(Heath,    [guilty, innocent]),
    member(Mullaney, [guilty, innocent]),

lvijay

% The below program solves a Logic Grid Puzzle using Prolog.
% The puzzle is available at the following url:
% https://www.brainzilla.com/logic/logic-grid/trick-or-treat/

% License: Public Domain

/*
 * Tested with SWI-Prolog.
 * To run:
 *

lvijay

public class Dispatch {
  static class Fruit                    { public String taste = "---";     }
  static class Melon extends Fruit      { public String taste = "squishy"; }
  static class Watermelon extends Melon { public String taste = "sweet";   }
  public void describe(Object o)     { print("object", "inedible."); }
  public void describe(Fruit f)      { print("fruit", f.taste);      }
  public void describe(Melon m)      { print("melon", m.taste);      }
  public void describe(Watermelon w) { print("watermelon", w.taste); }

  public static void main(String[] args) {

lvijay

## documentation pending
## tldr, there are 3 barrels on the floor, touching one another
## there's a board on the barrels that's at 60° from the horizontal
## the board touches all the barrels
## the first barrel has diameter 10
## what's the diameter of the 3rd barrel?

## this program draws the problem and solves it
## to run:
## python3 2021-05-07.py

lvijay

def din(n):
 if n:
  rest()
 else:
  less()

## reset
def rest():
 print("tridnt")

lvijay

import static java.nio.charset.StandardCharsets.US_ASCII;
import static java.nio.file.Files.newBufferedReader;
import static java.nio.file.Files.newByteChannel;
import static java.nio.file.StandardOpenOption.READ;
import static java.nio.file.StandardOpenOption.WRITE;

import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import java.nio.charset.Charset;