Day zero - bash

1 files changed, 40 insertions, 0 deletions

diff --git a/day-0/sol.sh b/day-0/sol.sh
new file mode 100755
index 0000000..441efb2
--- /dev/null
+++ b/day-0/sol.sh
@@ -0,0 +1,40 @@
+#!/bin/bash
+
+# USAGE: ./sol.sh (n: top elves)
+
+NUM_ELVES=${1:-3}
+
+declare -a ELVES=()
+for (( i = 0; i<$NUM_ELVES; i++))
+do
+  ELVES+=(0)
+done
+
+
+add_to_elves () {
+  local max=$1
+  for (( i = 0; i<${NUM_ELVES}; i++));
+  do
+    local tmp="${ELVES[$i]}";
+    if [[ $max -ge $tmp ]];
+    then
+      ELVES[$i]=$max 
+      max=$tmp
+    fi
+  done
+}
+
+CURRENT_ELF=0
+while read -r line
+do
+  if [[ -z "$line" ]];
+  then
+    add_to_elves $CURRENT_ELF 
+    CURRENT_ELF=0 
+  else
+    CURRENT_ELF=$((CURRENT_ELF+line))
+  fi
+done < input
+
+echo "MAX ELF = ${ELVES[0]}"
+echo "sum(TOP $NUM_ELVES ELVES) = $(printf "%s\n" $(echo "${ELVES[*]}") | paste -sd+ - | bc)"