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# Microphone Realtime background noise reduction script
# author Luigi Maselli - https://grigio.org licence: AS-IS
# credits: http://askubuntu.com/questions/18958/realtime-noise-removal-with-pulseaudio
# run as: sudo && pulseaudio -k
# wget -qO - https://gist.github.com/adrianolsk/bfa32f3227dc674eff72a2008f6c0316 | sudo bash && pulseaudio -k


sudo cp /etc/pulse/default.pa /etc/pulse/default.pa.bak
sudo cat <<EOT >> /etc/pulse/default.pa
load-module module-echo-cancel source_name=noechosource sink_name=noechosink

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-- Adapted from information_schema.columns

SELECT
  c.oid :: int8 AS table_id,
  nc.nspname AS schema,
  c.relname AS table,
  (c.oid || '.' || a.attnum) AS id,
  a.attnum AS ordinal_position,
  a.attname AS name,
  CASE

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import java.util.Scanner;

public class Cesar {
    public static void main(String[] args) {
        Scanner teclado = new Scanner(System.in);

        char[] mapa = "ABCDEFGHIJKLMNOPQRSTUVWXYZ".toCharArray();
        int chave = 26;

        while (chave < 0 || chave > 25) {

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import java.util.Scanner;

public class CifraROT13 {
    public static void main(String[] args) {
        char[] mapa = "ABCDEFGHIJKLMNOPQRSTUVWXYZ".toCharArray();
        int chave = 13;

        Scanner teclado = new Scanner(System.in);

        System.out.println("ROT13");

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import java.util.Scanner;
public class Rot13 {
    public static void main(String[] args) {
        Scanner teclado = new Scanner(System.in);

        char[] mapa = "ABCDEFGHIJKLMNOPQRSTUVWXYZ".toCharArray();
        int chave = 13;
        
        System.out.println("ROT13");
        while(true){

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addEventListener("fetch", (event) => {
  console.log("Req", event.request)
  event.respondWith(
    new Response("Hello world", {
      status: 200,
      headers: {
        server: "deploy",
        "content-type": "text/plain",
      },
    }),

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FFmpeg cheat sheet

A list of useful commands for the ffmpeg command line tool.

Download FFmpeg: https://www.ffmpeg.org/download.html

Full documentation: https://www.ffmpeg.org/ffmpeg.html

Basic conversion

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import sys
import time

cols = 59
steps = 100

if len(sys.argv) > 2:
    steps = int(sys.argv[1])

for s in range(steps):

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Pretende usar UUID como PK em vez de Int/BigInt no seu banco de dados? Pense novamente...

TL;TD

Não use UUID como PK nas tabelas do seu banco de dados.

Um pouco mais de detalhes

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import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner teclado = new Scanner(System.in);
        char c1 = '1', c2 = '2', c3 = '3', 
            c4 = '4', c5 = '5', c6 = '6', 
            c7 = '7', c8 = '8', c9 = '9';

        char jogadorAtual = 'X';