day/02/demo_2_input.txt

@@ -2,9 +2,3 @@
 1 2 3 99
 1 3 2 3
 9 8 9 10
-9 10 11 11
-9 10 10 11
-9 8 2 7
-9 8 7 1
-9 4 10 11
-9 4 10 11 10

day/02/demo_input_1.txt

@@ -1 +0,0 @@
-7 6 4 2 1

day/02/demo_input_2.txt

@@ -1 +0,0 @@
-1 2 7 8 9

day/02/demo_input_3.txt

@@ -1 +0,0 @@
-9 7 6 2 1

day/02/demo_input_4.txt

@@ -1 +0,0 @@
-1 3 2 4 5

day/02/demo_input_5.txt

@@ -1 +0,0 @@
-8 6 4 4 1

day/02/demo_input_6.txt

@@ -1 +0,0 @@
-1 3 6 7 9

day/02/part2.sh

@@ -1,111 +0,0 @@
-#! /bin/bash
-
-#set -x
-
-FILE_IN="${1}"
-
-safe_count=0
-
-function debug_echo() {
-  echo "$@" 1>&2
-}
-
-function check_is_safe() {
-  local is_up_down="${1}"
-  local first_val="${2}"
-  local second_val="${3}"
-
-  local fun_is_safe=1
-
-  prev_diff=$((first_val - second_val))
-  debug_echo "diff ${prev_diff}"
-
-
-  if [[ "${prev_diff}" -gt 0 ]]; then
-    debug_echo "going up"
-    if [[ "${is_up_down}" -le 0 ]]; then
-      debug_echo "wrong direction"
-      fun_is_safe=0
-    fi
-  else
-    debug_echo "going down"
-    if [[ "${is_up_down}" -ge 0 ]]; then
-      debug_echo "wrong direction"
-      fun_is_safe=0
-    fi
-  fi
-
-  if [[ "${prev_diff#-}" -le 0 ]] || [[ "${prev_diff#-}" -ge 4 ]]; then
-    debug_echo "outside range"
-    fun_is_safe=0
-  fi
-
-  if [[ "${fun_is_safe}" -ne 0 ]]; then
-    debug_echo "safe"
-  else
-    debug_echo "unsafe"
-  fi
-
-  echo "${fun_is_safe}"
-}
-
-while read -r l; do
-  echo "reading new line [$l]"
-
-  IFS=" "
-  read -ra line_split <<< "${l}"
-  unset IFS
-
-  # start with the first val
-  prev_val="${line_split[0]}"
-
-  is_safe=2
-
-  # if positive, going up, if negative, going down!
-  is_up_down="$((line_split[1] - line_split[0]))"
-
-  safety_trigger=1
-
-  if [[ "${is_up_down}" -ge 0 ]]; then
-    echo "Initially going up"
-  else
-    echo "Initially going down"
-  fi
-
-  for idx in "${!line_split[@]}"; do
-    [[ "${idx}" -eq 0 ]] && continue
-    echo "index $idx"
-    v="${line_split[${idx}]}"
-    echo "checking [${v}] against previous [${prev_val}]"
-    test_is_safe=$(check_is_safe "${is_up_down}" "${v}" "${prev_val}")
-
-    debug_echo "safe val ${test_is_safe}"
-
-    if [[ "${test_is_safe}" -eq 0 ]]; then
-      # normally we fail this set
-      is_safe=$((is_safe - 1))
-    fi
-
-    if [[ "${test_is_safe}" -eq 0 ]] && [[ "${safety_trigger}" -eq 1 ]]; then
-      # but we let 1 happen if the trigger hasnt... triggered
-      safety_trigger=0
-      if [[ "${idx}" -eq 1 ]]; then
-        # we may have to re-calculate is_up_down!
-        is_up_down="$((line_split[2] - line_split[0]))"
-        echo "allowing flip up/down"
-      fi
-      echo "-------------------"
-      echo "allowing 1 failure!"
-      echo "-------------------"
-    else
-      # we skip the re-assign once to 'skip' a number
-      prev_val=$v
-    fi
-  done
-
-  if [[ "${is_safe}" -gt 0 ]]; then
-    safe_count=$((safe_count + 1))
-  fi
-done <"$FILE_IN"
-
-echo "final safe count ${safe_count}"