25 lines
539 B
Markdown
25 lines
539 B
Markdown
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Advent of code 2024
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Day 1
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Usage:
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rustc d1p1.rs
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cat input.txt | ./d1p1
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Part 1:
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Parse each line into a pair of ints; store them in a pair of heaps.
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Convert heaps into sorted lists. Iterate through them together
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and find the absolute difference between each pair of numbers.
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Part 2:
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Parse each line into a pair of ints; store the first in an array,
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place the second into a map that accumulate the number of times
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a value is seen.
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Iterate through the array, adding the number times the number of
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times it was seen in the map.
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