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69 lines
2.5 KiB
Markdown
69 lines
2.5 KiB
Markdown
2 years ago
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https://adventofcode.com/2022/day/1
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## \--- Day 1: Calorie Counting ---
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Santa's reindeer typically eat regular reindeer food, but they need a lot of
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[magical energy](/2018/day/25) to deliver presents on Christmas. For that,
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their favorite snack is a special type of _star_ fruit that only grows deep in
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the jungle. The Elves have brought you on their annual expedition to the grove
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where the fruit grows.
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To supply enough magical energy, the expedition needs to retrieve a minimum of
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_fifty stars_ by December 25th. Although the Elves assure you that the grove
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has plenty of fruit, you decide to grab any fruit you see along the way, just
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in case.
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Collect stars by solving puzzles. Two puzzles will be made available on each
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day in the Advent calendar; the second puzzle is unlocked when you complete
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the first. Each puzzle grants _one star_. Good luck!
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The jungle must be too overgrown and difficult to navigate in vehicles or
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access from the air; the Elves' expedition traditionally goes on foot. As your
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boats approach land, the Elves begin taking inventory of their supplies. One
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important consideration is food - in particular, the number of _Calories_ each
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Elf is carrying (your puzzle input).
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The Elves take turns writing down the number of Calories contained by the
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various meals, snacks, rations, etc. that they've brought with them, one item
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per line. Each Elf separates their own inventory from the previous Elf's
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inventory (if any) by a blank line.
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For example, suppose the Elves finish writing their items' Calories and end up
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with the following list:
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[code]
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1000
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2000
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3000
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4000
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5000
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6000
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7000
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8000
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9000
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10000
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[/code]
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This list represents the Calories of the food carried by five Elves:
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* The first Elf is carrying food with `1000`, `2000`, and `3000` Calories, a total of `_6000_` Calories.
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* The second Elf is carrying one food item with `_4000_` Calories.
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* The third Elf is carrying food with `5000` and `6000` Calories, a total of `_11000_` Calories.
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* The fourth Elf is carrying food with `7000`, `8000`, and `9000` Calories, a total of `_24000_` Calories.
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* The fifth Elf is carrying one food item with `_10000_` Calories.
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In case the Elves get hungry and need extra snacks, they need to know which
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Elf to ask: they'd like to know how many Calories are being carried by the Elf
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carrying the _most_ Calories. In the example above, this is _`24000`_ (carried
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by the fourth Elf).
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Find the Elf carrying the most Calories. _How many total Calories is that Elf
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carrying?_
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