advent of code 2024 version unix - retour accueil
git clone git://bebou.netlib.re/aoc2024
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2.solve (945B)
1 #! /bin/sh
2
3 echo "part 1"
4
5 < 2.input awk '{
6 split($0,a," ")
7 if (a[2]-a[1] > 0) { upordown="up" } else { upordown="down" }
8 for(i=1;i<length(a);i++) {
9 diff=a[i+1]-a[i]
10 if ( diff > 3 || diff < -3 || diff==0 ) {
11 print $0" not safe to large of a diff or 0"
12 next
13 }
14 if ( upordown=="up" && a[i+1]-a[i]<0 || upordown=="down" && a[i+1]-a[i]>0 ) {
15 print $0" not safe wrong way"
16 next
17 }
18 }
19 print $0" safe"
20 }' | grep 'safe$' | wc -l
21
22 echo "part 2"
23
24 < 2.input awk '{
25 damp=0
26 split($0,a," ")
27 if (a[2]-a[1] > 0) { upordown="up" } else { upordown="down" }
28 for(i=1;i<length(a);i++) {
29 diff=a[i+1]-a[i]
30 if ( diff > 3 || diff < -3 || diff==0 ) {
31 if (damp==1) { print $0" not safe to large of a diff or 0";next}
32 else damp=1
33 next
34 }
35 if ( upordown=="up" && a[i+1]-a[i]<0 || upordown=="down" && a[i+1]-a[i]>0 ) {
36 if (damp==1) { print $0" not safe to large of a diff or 0"; next }
37 else damp=1
38 }
39 }
40 print $0" safe"
41 }'
42