blob: 04b44235bbb689ae9201be0d714241eb7a5a0407 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
# Day 10: Off-by-One Errors
import std/[os, strutils, sequtils]
let input = paramStr(1).readFile().strip().split("\n")
let instructions = input.mapIt((it.split(" ")))
var sum = 0
var clock = 1
var register = 1
proc tick() =
inc clock
proc write(value: string) =
register += value.parseInt()
proc compare() =
if clock mod 40 == 20:
sum += register * clock
proc render() =
if abs(register - ((clock-1) mod 40)) < 2:
stdout.write("#")
else:
stdout.write(".")
if clock mod 40 == 0:
stdout.write("\n")
for ins in instructions:
render()
tick()
compare()
if ins.len == 2:
render()
tick()
write(ins[1])
compare()
echo sum
|
