28 lines
742 B
Nim
28 lines
742 B
Nim
import std/strutils
|
|
import std/sequtils
|
|
|
|
proc parseInput(instr: string): seq[int] =
|
|
result = instr.
|
|
splitLines.
|
|
toSeq.
|
|
filter(proc(x: string): bool = x != "").
|
|
map(parseInt)
|
|
|
|
proc countIncreases(data: seq[int]): int =
|
|
for i in 1..data.high:
|
|
if data[i] > data[i-1]:
|
|
result = result + 1
|
|
|
|
proc partOne*(instr: string): int =
|
|
let input = parseInput(instr)
|
|
return countIncreases(input)
|
|
|
|
proc partTwo*(instr: string): int =
|
|
let input = parseInput(instr)
|
|
var sums: seq[int]
|
|
for i in countup(0, len(input)-3):
|
|
sums.add(input[i] + input[i+1] + input[i+2])
|
|
# sums.add(
|
|
# (@input[i..i+2]).foldl(a+b),
|
|
# )
|
|
return countIncreases(sums)
|