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author | Justin Worthe <justin@worthe-it.co.za> | 2017-12-02 07:26:08 +0200 |
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committer | Justin Worthe <justin@worthe-it.co.za> | 2017-12-02 07:26:08 +0200 |
commit | 33db46ef6dcdddeb8e9c64ca6f18a1cedfe9de36 (patch) | |
tree | e8c83fd3e00ccdf30e8c01efe6abb5032c0b03b0 /src/bin/day_2.rs | |
parent | 5e5abff58c998448908acf71937915d72314c9ea (diff) |
Day 2
Diffstat (limited to 'src/bin/day_2.rs')
-rw-r--r-- | src/bin/day_2.rs | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/bin/day_2.rs b/src/bin/day_2.rs new file mode 100644 index 0000000..307029a --- /dev/null +++ b/src/bin/day_2.rs @@ -0,0 +1,26 @@ +extern crate advent_of_code_2017; +use advent_of_code_2017::*; + +fn main() { + let args = AdventArgs::init(); + let sum = args.input.iter().map(|line| { + let splitline = parse_space_separated_ints(line).unwrap(); + + if args.part == 1 { + let max = splitline.iter().max().unwrap(); + let min = splitline.iter().min().unwrap(); + max-min + } else { + for i in 0..splitline.len() { + for j in 0..splitline.len() { + if i != j && splitline[i] % splitline[j] == 0 { + return splitline[i] / splitline[j]; + } + } + } + panic!("Didn't find a dividing one! {:?}", splitline) + } + }).sum::<i32>(); + + println!("Checksum is {}", sum); +} |