Add day 1 & 2

1 files changed, 71 insertions, 0 deletions

diff --git a/02.sh b/02.sh
new file mode 100755
index 0000000..9c011d5
--- /dev/null
+++ b/02.sh
@@ -0,0 +1,71 @@
+#!/usr/bin/env bash
+set -eufCo pipefail
+
+function play_one() (
+        local game="$1"
+        local id=0
+        id=$(echo "$game" | cut -d' ' -f2 | cut -d':' -f1)
+        while read -r set; do
+                local red=12
+                local green=13
+                local blue=14
+                while read -r item; do
+                        local n=0
+                        n=$(echo "$item" | cut -d' ' -f1)
+                        if [[ "$item" =~ "red" ]]; then
+                                red=$((red - n))
+                        elif [[ "$item" =~ "green" ]]; then
+                                green=$((green - n))
+                        elif [[ "$item" =~ "blue" ]]; then
+                                blue=$((blue - n))
+                        fi
+                done < <(echo "$set" | tr ',' '\n')
+                if [[ "$red" -lt 0 || "$green" -lt 0 || "$blue" -lt 0 ]]; then
+                        echo 0; return 0;
+                fi
+        done < <(echo "$game" | cut -d':' -f2 | cut -d' ' -f2- | tr ';' '\n')
+        echo "$id"
+)
+
+function play_two() (
+        local game="$1"
+        local id=0
+        id=$(echo "$game" | cut -d' ' -f2 | cut -d':' -f1)
+        local colors=()
+        while read -r set; do
+                local red=0
+                local green=0
+                local blue=0
+                while read -r item; do
+                        local n=0
+                        n=$(echo "$item" | cut -d' ' -f1)
+                        if [[ "$item" =~ "red" ]]; then
+                                red=$((red + n))
+                        elif [[ "$item" =~ "green" ]]; then
+                                green=$((green + n))
+                        elif [[ "$item" =~ "blue" ]]; then
+                                blue=$((blue + n))
+                        fi
+                done < <(echo "$set" | tr ',' '\n')
+                colors+=("$red $green $blue")
+        done < <(echo "$game" | cut -d':' -f2 | cut -d' ' -f2- | tr ';' '\n')
+        local red=0
+        local green=0
+        local blue=0
+        for i in "${colors[@]}"; do
+                rbg=($i)
+                [[ "${rbg[0]}" -gt "$red" ]] && red="${rbg[0]}"
+                [[ "${rbg[1]}" -gt "$green" ]] && green="${rbg[1]}"
+                [[ "${rbg[2]}" -gt "$blue" ]] && blue="${rbg[2]}"
+        done
+        echo "$((red * green * blue))"
+)
+
+sum_one=0
+sum_two=0
+while read -r game; do
+        sum_one=$((sum_one + $(play_one "$game")))
+        sum_two=$((sum_two + $(play_two "$game")))
+done < <(cat 02.txt)
+echo "$sum_one"
+echo "$sum_two"