jonasraoni

/*
Twin Strings
Two strings, a and b, are said to be twins only if they can be made equivalent by performing some number of operations on one or both strings. There are two possible operations:

SwapEven: Swap a character at an even-numbered index with a character at another even-numbered index.
SwapOdd: Swap a character at an odd-numbered index with a character at another odd-numbered index.
 
For example, a = "abcd" and b = "cdab" are twins because we can make them equivalent by performing operations. Alternatively, a = "abcd" and b = "bcda" are not twins (operations do not move characters between odd and even indices), and neither are a = "abc" and b = "ab" (no amount of operations will insert a 'c' into string b).

Complete the twins function in the provided code. It has two parameters:

jonasraoni

using System;
using System.IO;
using System.Web;
using System.Text;
using System.Collections.Generic;
using System.Collections;

namespace Raoni {
	public delegate bool Generator<T>(out T value);
	public delegate bool Enumerator<T>(T value);

jonasraoni

-- find missing indexes
SELECT
	conrelid::regclass, conname, reltuples::bigint
FROM
	pg_constraint
JOIN pg_class 
	ON conrelid = pg_class.oid
WHERE 
	contype = 'f'
	AND NOT EXISTS (

jonasraoni

SELECT
	C.Table_Name,
	C.Constraint_Name,
	C.Constraint_Columns
FROM
	(
		SELECT
			object_name(i.object_id) table_name, i.name index_name,
			MAX(CASE index_column_id when 1 THEN col_name(ic.object_id,ic.column_id) ELSE '' END) +
			MAX(CASE index_column_id when 2 THEN col_name(ic.object_id,ic.column_id) ELSE '' END) +

jonasraoni

using System;
using System.Text.RegularExpressions;

namespace Raoni {
	public static class Utils {
		private string queryLimit(string query, uint limit, uint? offset) {
			if(limit > 0) {
				offset = offset == null ? 0 : offset;
				if(offset < 0)
					throw new Exception("LIMIT argument offset=" + offset + " is not valid");

jonasraoni

Backup = {
	shell: WScript.CreateObject("WScript.Shell"),
	base: "C:/BACKUP/",
	username: "USERNAME",
	hostname: "HOST",
	password: "PASSWORD",
	type: {
		postgreSQL: function(){
			var shell = Backup.shell;
			var path = "c:/program files/postgresql/9.6/bin/";

jonasraoni

//+ Jonas Raoni Soares Silva
//@ http://raoni.org

// Iteration 3: manually minified xD
const sum = (...args) => ((v, r = sum.bind(this, v)) => (r[Symbol.toPrimitive] = () => v, r))(args.reduce((a, b) => a + b, 0));

// Iteration 2: supports sum(1,2,3)
const sum = (...args) => {
	const operation = (...args) => args.reduce((a, b) => a + b, 0);
	let current = operation(...args);

jonasraoni

function print(o){
	var
		m = o.length >> 1,
		r = m,
		c = m + 1;
		p = function(){
			console.log(o[r][c]);
		},
		left = function(i){
			for(; c > i; p(--c));

jonasraoni

class Increment{
	constructor(value) {
		this.current = +value || 0;
	};
	[Symbol.toPrimitive]() {
		return ++this.current;
	}
}

var increment = new Increment();

jonasraoni

var _, D;
(_ = function(){return this["trela".match(/\w/g)["reverse"]().join("")];})[false] = "jonas";
_()(_[     (_(_)===D      )]);