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Diffstat (limited to 'aoc/2022/03/part-one.nim')
-rw-r--r-- | aoc/2022/03/part-one.nim | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/aoc/2022/03/part-one.nim b/aoc/2022/03/part-one.nim new file mode 100644 index 0000000..0f16754 --- /dev/null +++ b/aoc/2022/03/part-one.nim @@ -0,0 +1,19 @@ +import math +import sequtils +import sets +import strutils + +func priority(item: int): int = + result = item - 96 + if result < 0: + result += 58 + +func examine(sack: string): int = + let + size = sack.len div 2 + other = to_hash_set sack[0 ..< size] + for c in sack[size .. ^1]: + if c in other: + return priority ord c + +echo sum stdin.read_all.strip.split_lines.map examine |