Make all scripts able to take a file name, merge parts 1 and 2 of lanternfish in...

[advent-of-code-2021.git] / day06 / lanternfish2.sh

diff --git a/day06/lanternfish2.sh b/day06/lanternfish2.sh
deleted file mode 100755 (executable)
index 924ac46..0000000
--- a/day06/lanternfish2.sh
+++ /dev/null
@@ -1,40 +0,0 @@
-#!/bin/bash
-
-set -u
-set -e
-
-declare -a fish
-
-filename="${1:-example.txt}"
-
-exec 3<"$filename"
-
-OLDIFS="$IFS"
-IFS=","
-read -u 3 -a fish
-IFS="$OLDIFS"
-
-buckets=(0 0 0 0 0 0 0 0 0)
-
-for f in "${fish[@]}"; do
-    ((buckets[$f]+=1))
-done
-
-for (( d=1; d<=256; d++ )); do
-    orig_zeros=${buckets[0]}
-    for (( i=1; i<=8; i++ )); do
-        temp=${buckets[$i]}
-        ((buckets[$((i-1))]+=$temp)) || true
-        buckets[$i]=0
-    done
-    ((buckets[8]+=$orig_zeros)) || true
-    ((buckets[6]+=$orig_zeros)) || true
-    ((buckets[0]-=$orig_zeros)) || buckets[0]=0
-done
-
-count=0
-for (( i=0; i<=8; i++ )); do
-    ((count+=${buckets[$i]}))
-done
-
-echo "After 256 days there are $count fish"