Nates_AdventOfCode_21:

#' Day 01: Sonar Sweep
#'
#' [Sonar Sweep](https://adventofcode.com/2021/day/1)
#'
#' @name day01
#' @rdname day01
#' @details
#'
#' **Part One**
#'
#' You\'re minding your own business on a ship at sea when the overboard
#' alarm goes off! You rush to see if you can help. Apparently, one of the
#' Elves tripped and accidentally sent the sleigh keys flying into the
#' ocean!
#' 
#' Before you know it, you\'re inside a submarine the Elves keep ready for
#' situations like this. It\'s covered in Christmas lights (because of
#' course it is), and it even has an experimental antenna that should be
#' able to track the keys if you can boost its signal strength high enough;
#' there\'s a little meter that indicates the antenna\'s signal strength by
#' displaying 0-50 *stars*.
#' 
#' Your instincts tell you that in order to save Christmas, you\'ll need to
#' get all *fifty stars* by December 25th.
#' 
#' Collect stars by solving puzzles. Two puzzles will be made available on
#' each day in the Advent calendar; the second puzzle is unlocked when you
#' complete the first. Each puzzle grants *one star*. Good luck!
#' 
#' As the submarine drops below the surface of the ocean, it automatically
#' performs a sonar sweep of the nearby sea floor. On a small screen, the
#' sonar sweep report (your puzzle input) appears: each line is a
#' measurement of the sea floor depth as the sweep looks further and
#' further away from the submarine.
#' 
#' For example, suppose you had the following report:
#' 
#'     199
#'     200
#'     208
#'     210
#'     200
#'     207
#'     240
#'     269
#'     260
#'     263
#' 
#' This report indicates that, scanning outward from the submarine, the
#' sonar sweep found depths of `199`, `200`, `208`, `210`, and so on.
#' 
#' The first order of business is to figure out how quickly the depth
#' increases, just so you know what you\'re dealing with - you never know
#' if the keys will get [carried into deeper
#' water]{title="Does this premise seem fishy to you?"} by an ocean current
#' or a fish or something.
#' 
#' To do this, count *the number of times a depth measurement increases*
#' from the previous measurement. (There is no measurement before the first
#' measurement.) In the example above, the changes are as follows:
#' 
#'     199 (N/A - no previous measurement)
#'     200 (increased)
#'     208 (increased)
#'     210 (increased)
#'     200 (decreased)
#'     207 (increased)
#'     240 (increased)
#'     269 (increased)
#'     260 (decreased)
#'     263 (increased)
#' 
#' In this example, there are *`7`* measurements that are larger than the
#' previous measurement.
#' 
#' *How many measurements are larger than the previous measurement?*
#'
#' **Part Two**
#'
#' *(Use have to manually add this yourself.)*
#'
#' *(Try using `convert_clipboard_html_to_roxygen_md()`)*
#'
#' @param x some data
#' @return For Part One, `f01a(x)` returns .... For Part Two,
#'   `f01b(x)` returns ....
#' @export
#' @examples
#' f01a(example_data_01())
#' f01b()
f01a <- function(x) {

}


#' @rdname day01
#' @export
f01b <- function(x) {

}


f01_helper <- function(x) {

}


#' @param example Which example data to use (by position or name). Defaults to
#'   1.
#' @rdname day01
#' @export
example_data_01 <- function(example = 1) {
  l <- list(
    a = c(


    )
  )
  l[[example]]
}