def-

# Fancy ID generator that creates 20-character string identifiers with the following properties:
#
# 1. They're based on timestamp so that they sort *after* any existing ids.
# 2. They contain 72-bits of random data after the timestamp so that IDs won't collide with other clients' IDs.
# 3. They sort *lexicographically* (so the timestamp is converted to characters that will sort properly).
# 4. They're monotonically increasing.  Even if you generate more than one in the same timestamp, the
#    latter ones will sort after the former ones.  We do this by using the previous random bits
#    but "incrementing" them by 1 (only in the case of a timestamp collision).
#
# Based on https://www.firebase.com/blog/2015-02-11-firebase-unique-identifiers.html

def-

import macros

macro mac(n: expr): expr =
  parseExpr "(proc(): int = " & $n.intVal & ")"

echo mac(10)()

def-

from strutils import replace, find, parseInt

echo "Input an operation:"

try:
  let
    line = stdin.readLine.replace(" ", "")
    opindex = line.find({'+','-','*','/'})

  if opindex == -1:

def-

import strutils, unicode

type
  Component = ref object of RootObj
  CPosition = ref object of Component
    x, y: int
  CVelocity = ref object of Component
    dx, dy: int
  CRune = ref object of Component
    rune: Rune

def-

const data = "AGCTTTTCATTCTGACTGCAACGGGCAATATGTCTCTGTGTGGATTAAAAAAAGAGTGTCTGATAGCAGC"

var A, C, G, T = 0

for letter in data:
  case letter
  of 'A': inc A
  of 'C': inc C
  of 'G': inc G
  of 'T': inc T

def-

# counting point mutations
# count all mutations where C != C, G !=G, A != A, and T != T
import algorithm

# define string variables
var s: string = "GAGCCTACTAACGGGAT"
var t: string = "CATCGTAATGACGGCCT"

# define count variable for number of mutations
var mutations: int = 0

def-

import asyncdispatch

template doAsync(name: expr; body: untyped): untyped {.immediate.} =
  proc name() {.async.} =
    body

  asyncCheck(name())

doAsync(namething):
  echo "hello"