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package main | |
import ( | |
"fmt" | |
) | |
type RNG interface { | |
Next() (uint64, RNG) | |
} |
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#!/usr/bin/env python | |
import csv | |
import json | |
import sys | |
import argparse | |
import dataclasses as dc | |
@dc.dataclass(frozen=True) |
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package main | |
import ( | |
"context" | |
"fmt" | |
"log" | |
"github.com/go-redis/redis/v8" | |
) |
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#!/usr/bin/env python | |
import re | |
import arrow | |
import argparse | |
import urllib.parse | |
import requests | |
CLUSTERS = { |
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import sqlite3 | |
class Column: | |
def __init__(self, key, column=None): | |
self.key = key | |
self.column = column or self.key | |
@property | |
def value(self): | |
return ":" + self.key |
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package com.mkbernard.craps | |
interface PIso<S, T, A, B> { | |
fun get(s: S): A | |
fun reverseGet(b: B): T | |
fun set(b: B): (S) -> T = { reverseGet(b) } | |
fun set(s: S, b: B): T = set(b)(s) | |
fun modify(f: (A) -> B): (S) -> T = { reverseGet(f(get(it))) } | |
fun modify(s: S, f: (A) -> B): T = modify(f)(s) |
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sealed class Either<out E, out A> { | |
data class Left<E>(val left: E) : Either<E, Nothing>() | |
data class Right<A>(val right: A) : Either<Nothing, A>() | |
fun <R> fold(ifLeft: (E) -> R, ifRight: (A) -> R): R = | |
when (this) { | |
is Left -> ifLeft(left) | |
is Right -> ifRight(right) | |
} |
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object typeclasses { | |
trait Functor[F[_]] { | |
def map[A, B](fa: F[A])(f: A => B): F[B] | |
} | |
trait Apply[F[_]] extends Functor[F] { | |
def map2[A, B, C](fa: F[A], fb: F[B])(f: (A, B) => C): F[C] | |
def ap[A, B](ff: F[A => B])(fa: F[A]): F[B] = | |
map2(ff, fa)(_(_)) |
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import scala.concurrent.ExecutionContext.Implicits.global | |
import scala.concurrent.Future | |
object Depaginate extends App { | |
trait Monad[F[_]] { | |
def map[A, B](fa: F[A])(f: A => B): F[B] | |
def pure[A](a: A): F[A] | |
def flatMap[A, B](fa: F[A])(k: A => F[B]): F[B] | |
} |
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module Formula | |
class Expr | |
end | |
class Lit < Expr | |
attr_reader :name | |
def initialize(name) | |
@name = name | |
end |
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