From 615f33798f908f37e0e2061931fe8bc026c3ace0 Mon Sep 17 00:00:00 2001
From: Karl Spickermann <karliosos65@googlemail.com>
Date: Sun, 4 Dec 2022 23:09:37 +0100
Subject: [PATCH] Day4

---
 day4/day4.go     |   42 ++
 day4/input       | 1000 ++++++++++++++++++++++++++++++++++++++++++++++
 day4/testInput   |    6 +
 helper/helper.go |   19 +
 4 files changed, 1067 insertions(+)
 create mode 100644 day4/day4.go
 create mode 100644 day4/input
 create mode 100644 day4/testInput

diff --git a/day4/day4.go b/day4/day4.go
new file mode 100644
index 0000000..ea36325
--- /dev/null
+++ b/day4/day4.go
@@ -0,0 +1,42 @@
+package main
+
+import (
+	"AOC2022/helper"
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+)
+
+func main() {
+	args := os.Args[1:]
+	lines := helper.ReadTextFile(args[0])
+	sum1 := 0
+	sum2 := 0
+	for _, line := range lines {
+		orders := getOrders(line)
+		if orders[0] <= orders[2] && orders[1] >= orders[3] {
+			sum1++
+		} else if orders[2] <= orders[0] && orders[3] >= orders[1] {
+			sum1++
+
+		}
+		if !(orders[2] > orders[1] || orders[3] < orders[0]) {
+			sum2++
+		}
+	}
+	fmt.Println(sum1)
+	fmt.Println(sum2)
+}
+
+func getOrders(line string) (orders [4]int) {
+	orderparts := strings.FieldsFunc(line, split)
+	for i, part := range orderparts {
+		orders[i] = helper.RemoveError(strconv.Atoi(part))
+	}
+	return
+}
+
+func split(r rune) bool {
+	return r == '-' || r == ','
+}
diff --git a/day4/input b/day4/input
new file mode 100644
index 0000000..8d83b29
--- /dev/null
+++ b/day4/input
@@ -0,0 +1,1000 @@
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+23-23,24-76
+4-95,3-3
+23-71,24-71
+39-47,38-38
+73-91,92-92
+23-93,87-96
+46-76,27-77
+78-79,65-78
+27-46,26-46
+77-82,83-85
+2-54,54-55
+1-3,6-99
+42-42,22-43
+7-96,8-96
+28-33,28-87
+1-31,1-85
+2-93,3-94
+4-96,2-96
+30-30,29-99
+30-39,30-30
+4-18,34-88
+68-69,68-87
+30-95,30-76
+10-63,10-99
+2-98,98-98
+12-37,11-11
+9-80,9-81
+37-37,38-83
+95-99,7-95
+3-26,60-98
+3-99,4-28
+5-95,6-95
+41-86,42-85
+72-95,39-94
+1-51,1-62
+3-95,95-96
+73-83,74-79
+93-97,93-96
+33-93,32-93
+22-40,21-39
+11-14,18-79
+96-97,58-95
+16-40,40-89
+1-88,2-88
+5-51,5-29
+20-48,31-49
+3-95,95-96
+23-89,23-90
+55-80,56-79
+43-43,42-59
+55-84,54-83
+13-76,76-77
+22-94,9-35
+23-96,68-91
+1-85,60-84
+27-27,11-27
+33-35,33-64
+9-77,10-10
+69-81,90-91
+16-95,16-96
+21-94,21-22
+7-95,3-94
+47-79,1-57
+5-39,5-39
+12-82,13-82
+70-70,63-70
+64-64,26-63
+2-4,4-94
+80-80,79-97
+38-75,37-38
+54-91,92-92
+63-83,63-65
+8-56,8-55
+98-98,27-97
+26-91,28-92
+24-85,20-72
+13-18,30-84
+29-67,29-68
+87-95,8-87
+13-26,11-41
+16-99,17-99
+16-98,17-98
+18-54,18-83
+63-80,64-87
+63-63,58-63
+37-91,37-85
+6-12,4-7
+6-58,30-59
+18-52,53-96
+17-61,17-75
+49-72,71-97
+11-69,11-36
+22-84,22-83
+1-64,1-65
+27-39,38-38
+48-49,49-88
+1-1,3-74
+55-92,55-98
+51-51,8-52
+2-26,1-26
+23-64,64-64
+57-82,57-81
+91-91,26-91
+6-97,41-98
+1-94,1-95
+56-83,16-99
+8-8,10-88
+38-43,6-42
+22-84,2-89
+14-76,72-88
+31-93,30-93
+72-92,73-92
+57-58,21-57
+4-94,6-94
+11-85,86-86
+9-61,8-61
+69-91,69-69
+27-77,77-78
+10-52,10-51
+9-9,8-49
+66-67,65-78
+2-90,2-98
+42-42,41-79
+3-86,3-42
+15-93,25-73
+26-94,27-95
+16-99,15-99
+1-1,3-65
+97-98,4-96
+25-87,26-97
+3-20,20-96
+32-81,32-80
+22-85,22-95
+4-96,97-98
+97-99,62-75
+87-99,46-87
+98-99,44-76
+26-93,26-33
+56-87,34-63
+1-91,95-98
+12-97,11-80
+19-36,19-91
+19-25,25-98
+99-99,7-92
+37-46,38-43
+73-75,73-78
+18-97,97-97
+4-98,4-94
+88-88,25-88
+95-95,4-95
+3-70,9-71
+20-54,19-21
+34-40,24-39
+3-3,2-95
+5-37,4-37
+5-81,5-80
+2-95,9-95
+12-87,13-13
+2-3,2-96
+19-63,19-94
+64-84,35-35
+8-96,5-95
+37-69,38-52
+91-98,12-92
+66-87,66-83
+36-58,20-57
+8-82,82-83
+11-71,13-70
+40-43,39-43
+1-73,1-1
+12-91,12-92
+73-97,41-57
+6-83,7-7
+20-36,19-41
+15-91,14-90
+18-51,13-50
+12-97,97-97
+1-89,89-89
+13-34,12-34
+46-52,46-79
+34-36,34-35
+22-76,76-76
+3-93,4-76
+34-35,22-34
+7-20,20-20
+16-47,2-27
+59-60,2-59
+96-99,37-94
+4-92,4-94
+12-30,8-29
+22-32,22-22
+1-99,2-98
+61-70,53-70
+45-96,46-96
+84-99,2-85
+1-2,1-99
+19-99,20-94
+77-86,86-88
+25-83,3-82
+6-70,5-70
+38-85,85-86
+55-83,55-84
+87-98,86-97
+29-31,29-74
+5-42,5-41
+21-99,21-77
+47-71,46-51
+33-51,50-50
+52-60,5-40
+28-94,29-29
+6-23,11-14
+31-33,32-48
+74-75,44-74
+84-96,84-96
+38-38,37-45
+53-90,92-94
+12-32,2-8
+39-70,38-70
+93-96,17-93
+43-60,33-37
+4-22,3-95
+1-89,2-90
+27-76,26-77
+34-71,57-71
+49-62,20-62
+48-97,2-95
+11-72,2-5
+72-72,72-92
+22-65,64-78
+24-96,24-25
+38-93,32-94
+70-71,59-70
+38-76,38-76
+31-50,30-50
+22-97,21-69
+22-79,24-80
+69-88,88-88
+47-48,46-87
+27-29,28-42
+24-24,25-71
+11-94,20-95
+1-10,29-85
+32-52,32-86
+15-72,73-93
+15-28,15-47
+14-64,15-64
+88-88,25-89
+80-80,15-80
+3-58,58-59
+19-96,95-99
+39-74,40-87
+64-71,71-72
+49-80,36-80
+61-79,49-78
\ No newline at end of file
diff --git a/day4/testInput b/day4/testInput
new file mode 100644
index 0000000..99a66c5
--- /dev/null
+++ b/day4/testInput
@@ -0,0 +1,6 @@
+2-4,6-8
+2-3,4-5
+5-7,7-9
+2-8,3-7
+6-6,4-6
+2-6,4-8
\ No newline at end of file
diff --git a/helper/helper.go b/helper/helper.go
index cff3d09..84b958b 100644
--- a/helper/helper.go
+++ b/helper/helper.go
@@ -22,6 +22,25 @@ func ReadTextFile(filePath string) []string {
 	return strings.Split(string(file), "\r\n")
 }
 
+func FindRepeatedItems[T int | int64](itemgroup1, itemgroup2 []T) []T {
+	elementsCompartment1 := map[T]bool{}
+	repeatedElemnts := map[T]bool{}
+	for _, item := range itemgroup1 {
+		elementsCompartment1[item] = true
+	}
+	for _, item := range itemgroup2 {
+		if elementsCompartment1[item] {
+			repeatedElemnts[item] = true
+		}
+	}
+	v := make([]T, 0, len(repeatedElemnts))
+	for key, _ := range repeatedElemnts {
+		v = append(v, key)
+	}
+
+	return v
+}
+
 func FindMax[T int | int64](slice []T) (m T) {
 	for i, e := range slice {
 		if i == 0 || e > m {