From 87161b6375d6b53e483b547e6059bad85e932261 Mon Sep 17 00:00:00 2001
From: David Vereb <dev@eriestrayer.com>
Date: Tue, 6 Dec 2022 08:56:28 -0500
Subject: [PATCH] Added day 4, part 1 and 2.

---
 2022/4/Makefile |    2 +
 2022/4/data.txt | 1000 +++++++++++++++++++++++++++++++++++++++++++++++
 2022/4/main.cpp |   79 ++++
 3 files changed, 1081 insertions(+)
 create mode 100644 2022/4/Makefile
 create mode 100644 2022/4/data.txt
 create mode 100644 2022/4/main.cpp

diff --git a/2022/4/Makefile b/2022/4/Makefile
new file mode 100644
index 0000000..638e325
--- /dev/null
+++ b/2022/4/Makefile
@@ -0,0 +1,2 @@
+a.out: main.cpp
+	clang++ -std=c++2b -g -O0 main.cpp
diff --git a/2022/4/data.txt b/2022/4/data.txt
new file mode 100644
index 0000000..0745f29
--- /dev/null
+++ b/2022/4/data.txt
@@ -0,0 +1,1000 @@
+61-78,61-77
+1-98,23-98
+70-70,3-70
+7-41,7-40
+5-85,2-50
+13-59,13-13
+22-81,57-82
+4-26,27-70
+37-86,38-86
+3-49,48-48
+43-52,42-52
+6-95,6-94
+27-66,26-65
+15-16,16-89
+29-61,22-86
+9-82,10-83
+2-40,39-42
+5-67,6-68
+6-57,13-87
+70-92,69-71
+37-53,50-59
+2-94,1-94
+11-81,10-82
+3-83,1-3
+78-90,77-93
+10-93,10-11
+14-81,32-80
+6-29,5-47
+91-99,19-91
+6-87,6-86
+29-94,93-94
+3-18,17-18
+44-44,45-91
+25-25,26-54
+30-83,30-30
+50-86,27-87
+8-40,9-40
+25-78,24-79
+3-12,11-95
+47-53,47-52
+27-47,27-47
+19-67,19-20
+98-98,1-99
+9-38,8-90
+6-98,7-11
+8-59,50-53
+37-99,36-99
+1-98,1-99
+14-14,15-44
+13-95,4-95
+1-99,2-98
+43-80,44-79
+14-87,5-88
+21-57,38-56
+41-49,9-50
+30-67,29-66
+64-94,83-93
+18-93,2-13
+56-61,3-62
+99-99,42-90
+21-83,22-71
+20-86,12-41
+12-77,81-89
+61-97,60-61
+94-95,10-95
+7-98,7-99
+57-80,3-99
+15-88,16-57
+46-64,21-65
+59-78,59-99
+3-86,24-36
+3-45,2-63
+65-66,65-69
+11-63,41-64
+3-76,8-75
+26-50,49-86
+7-98,8-98
+44-88,43-87
+10-25,9-99
+35-83,34-83
+14-41,14-40
+26-35,29-36
+21-95,22-22
+3-84,2-83
+81-90,2-89
+11-50,11-11
+44-52,45-51
+10-67,10-68
+88-99,9-24
+20-85,6-86
+78-93,77-94
+13-14,13-35
+65-80,57-79
+47-98,46-48
+65-93,64-92
+36-79,37-78
+38-38,37-93
+25-83,24-83
+8-91,90-91
+15-85,15-84
+72-87,42-72
+13-83,11-84
+12-92,11-41
+4-86,74-84
+79-92,82-93
+37-89,88-88
+12-83,82-82
+64-83,63-82
+10-12,11-76
+5-70,5-69
+24-66,23-66
+51-63,27-63
+6-84,5-84
+68-85,77-86
+45-69,69-92
+28-90,17-91
+30-45,30-46
+39-40,40-86
+39-74,74-75
+29-98,14-28
+4-40,1-40
+15-90,15-97
+6-19,5-42
+2-72,1-73
+27-81,81-82
+4-91,3-90
+33-95,33-96
+24-90,23-23
+88-88,15-89
+77-78,70-78
+28-80,11-27
+36-91,35-93
+98-99,3-98
+13-70,63-70
+3-73,49-73
+66-87,65-86
+12-93,13-14
+76-96,89-96
+24-72,25-71
+68-71,67-73
+1-6,5-89
+19-88,19-96
+5-5,5-21
+19-20,20-50
+76-97,75-97
+7-98,18-97
+24-25,25-50
+4-94,3-94
+66-92,65-92
+21-29,21-29
+5-43,6-43
+19-94,19-95
+17-60,27-59
+10-75,11-74
+57-84,57-85
+6-68,67-69
+66-66,22-65
+62-63,61-63
+17-86,17-87
+10-81,82-86
+12-90,12-89
+32-98,31-99
+83-85,10-84
+19-90,2-18
+83-85,14-84
+50-69,68-68
+25-96,25-95
+77-90,80-91
+68-90,73-89
+17-89,14-88
+45-55,46-55
+28-98,98-98
+54-78,54-54
+28-34,28-34
+69-76,70-70
+13-54,12-54
+28-46,16-45
+20-92,18-92
+64-65,11-65
+49-67,11-49
+16-17,17-98
+19-67,8-66
+19-27,9-64
+52-59,29-59
+43-78,4-77
+62-62,63-99
+5-6,6-71
+5-91,4-92
+3-9,8-69
+52-53,53-53
+77-80,78-80
+26-97,97-99
+8-61,35-60
+22-92,6-91
+8-68,7-9
+3-6,5-83
+1-1,3-80
+4-91,90-92
+18-73,72-72
+12-19,13-18
+21-73,20-73
+69-92,70-70
+9-75,10-10
+78-80,79-80
+52-54,18-53
+95-98,30-95
+3-91,3-91
+3-95,2-95
+9-81,9-9
+13-88,14-89
+24-67,25-66
+23-97,23-98
+30-30,1-31
+20-61,57-61
+38-38,38-98
+2-95,1-96
+11-92,10-83
+22-92,8-27
+45-97,27-96
+25-98,1-99
+10-79,62-80
+2-25,1-90
+12-92,25-93
+1-99,98-98
+67-90,67-67
+15-95,2-96
+16-64,16-63
+4-18,17-89
+7-87,45-82
+2-3,3-95
+72-75,64-77
+3-5,6-56
+16-96,16-90
+76-84,75-83
+27-27,28-52
+24-39,38-84
+16-97,12-97
+11-98,10-99
+3-13,2-94
+26-40,25-41
+44-74,59-73
+66-75,53-74
+1-96,2-96
+1-85,1-85
+9-12,11-61
+45-82,46-82
+14-98,7-97
+65-65,19-65
+1-36,7-35
+20-49,19-50
+7-99,4-6
+20-85,21-86
+46-99,2-99
+6-6,7-89
+89-89,62-90
+7-93,3-92
+26-68,27-27
+30-61,29-61
+51-75,74-74
+7-76,19-75
+12-13,12-82
+22-55,23-54
+1-53,54-63
+20-87,20-86
+86-86,87-87
+46-72,46-47
+54-65,23-33
+8-93,6-6
+2-96,1-96
+87-99,86-98
+30-71,31-71
+3-94,93-93
+7-96,6-6
+21-74,20-75
+10-90,11-90
+19-90,18-19
+69-69,26-70
+59-97,59-98
+6-68,3-7
+2-17,16-65
+2-98,3-98
+71-95,31-71
+37-52,36-52
+72-87,73-87
+29-82,46-79
+65-77,14-78
+7-92,6-85
+8-35,15-36
+7-59,1-59
+93-95,6-93
+47-93,48-48
+5-24,1-23
+1-81,10-80
+32-65,1-66
+64-90,65-66
+21-65,7-20
+11-85,12-86
+89-89,73-90
+62-92,91-93
+48-60,2-59
+13-44,13-23
+11-32,30-33
+17-96,18-96
+19-91,14-14
+25-54,24-54
+7-92,9-93
+34-91,34-99
+80-89,71-88
+37-58,57-57
+27-99,5-99
+3-89,1-4
+34-90,91-95
+10-27,11-26
+37-58,37-59
+57-81,56-82
+9-73,66-74
+5-78,42-78
+30-77,26-92
+41-61,41-41
+65-74,65-74
+8-86,7-86
+1-94,2-93
+26-65,63-65
+4-95,4-71
+54-71,55-58
+9-49,11-48
+33-42,39-41
+55-69,56-68
+28-89,28-46
+7-91,91-94
+77-98,97-97
+19-37,15-37
+94-94,90-95
+3-63,2-97
+28-84,28-85
+18-20,19-44
+53-61,43-61
+76-98,76-77
+96-98,10-97
+33-89,17-89
+22-99,21-22
+17-28,23-28
+9-9,10-16
+55-57,10-56
+6-55,6-6
+10-82,5-81
+21-22,21-48
+16-98,4-15
+41-72,42-59
+32-49,46-49
+38-87,38-95
+2-2,2-29
+38-78,38-79
+19-25,17-25
+99-99,13-99
+1-2,3-80
+60-93,59-94
+35-84,34-84
+44-98,44-98
+16-32,70-78
+33-39,15-32
+13-86,13-85
+1-5,6-42
+38-48,38-38
+37-39,38-98
+94-94,10-95
+54-58,54-59
+20-68,21-68
+21-63,20-64
+73-74,8-73
+68-97,69-76
+54-89,2-90
+3-94,4-95
+32-94,29-55
+75-75,19-75
+7-67,8-68
+5-44,6-48
+84-84,5-84
+2-89,2-98
+22-45,21-45
+9-94,8-8
+13-87,20-87
+18-19,18-70
+18-46,17-47
+56-82,57-57
+17-77,28-78
+62-87,61-88
+8-87,7-88
+10-90,9-91
+4-92,4-93
+3-94,4-94
+51-57,46-57
+3-31,2-85
+51-55,51-54
+10-76,75-76
+20-64,49-62
+8-99,26-99
+3-55,2-2
+56-77,56-85
+31-82,1-81
+71-76,70-77
+40-52,53-77
+8-20,9-9
+19-41,40-40
+18-64,19-46
+85-85,23-86
+15-39,8-19
+57-64,56-70
+48-81,49-80
+17-92,1-93
+29-57,35-56
+43-98,42-97
+47-90,17-91
+73-73,72-72
+20-72,44-71
+2-95,2-96
+77-79,48-77
+17-88,18-92
+5-80,5-6
+1-49,50-64
+34-94,35-93
+2-22,3-23
+12-34,11-34
+46-55,40-55
+55-61,51-60
+2-70,3-69
+8-94,2-13
+43-60,47-60
+19-20,19-36
+64-72,63-65
+11-45,10-45
+23-87,22-87
+10-89,9-90
+1-1,2-97
+42-42,41-42
+12-95,11-95
+5-95,95-98
+2-99,3-61
+80-96,65-96
+41-94,41-42
+50-70,50-71
+36-51,50-52
+36-85,9-85
+16-24,16-23
+19-96,20-85
+89-90,15-90
+7-99,5-93
+17-26,16-59
+92-92,60-93
+35-80,35-90
+1-3,3-91
+78-89,78-88
+4-29,5-28
+20-60,15-79
+55-95,56-62
+58-97,59-98
+7-15,16-88
+15-43,16-48
+3-96,4-95
+34-35,2-34
+1-73,5-73
+1-97,4-97
+63-96,62-98
+76-78,77-78
+46-46,27-47
+11-11,12-50
+15-86,90-90
+54-74,53-74
+5-93,5-5
+14-85,15-85
+36-92,91-91
+50-74,51-62
+51-51,17-52
+10-79,1-80
+74-92,18-91
+17-24,23-51
+33-61,9-62
+6-97,2-98
+72-96,95-97
+43-80,33-80
+17-34,16-35
+60-83,59-83
+49-65,48-65
+70-71,18-71
+10-87,66-86
+19-69,20-69
+24-59,25-58
+11-36,12-35
+47-99,48-99
+14-96,96-97
+22-96,22-85
+68-68,17-69
+5-71,4-70
+23-48,22-49
+88-90,3-88
+29-55,37-56
+41-93,40-92
+91-91,37-92
+2-96,3-21
+40-76,75-75
+2-8,8-96
+8-96,99-99
+52-83,82-82
+15-92,80-86
+10-87,6-87
+15-29,14-30
+13-86,8-85
+9-95,41-44
+2-44,3-44
+8-91,70-87
+28-66,28-67
+2-86,1-3
+3-93,2-94
+11-18,8-19
+12-69,13-70
+4-13,8-12
+86-98,2-86
+75-91,62-79
+68-84,67-83
+3-94,2-94
+80-98,80-98
+54-89,54-55
+69-97,35-88
+39-99,38-89
+9-91,10-92
+16-17,16-86
+7-11,7-8
+7-57,7-8
+2-41,2-39
+18-63,17-64
+81-85,83-85
+97-97,69-98
+1-4,4-61
+90-93,58-93
+34-73,33-73
+7-87,86-88
+19-95,18-96
+4-5,5-77
+35-35,35-54
+43-43,42-82
+5-99,3-6
+14-29,15-65
+82-86,2-83
+8-20,9-15
+2-97,3-97
+69-88,70-88
+38-38,37-92
+17-42,17-41
+80-80,79-94
+24-45,24-72
+51-62,50-89
+5-72,6-61
+56-78,16-51
+71-84,70-71
+2-78,13-68
+63-92,12-73
+40-90,37-79
+47-93,49-93
+21-72,3-73
+96-97,3-97
+7-74,50-75
+58-87,86-87
+88-90,4-89
+16-16,17-29
+4-97,10-97
+22-92,22-91
+88-89,11-89
+37-87,37-94
+75-75,15-76
+20-77,76-76
+32-80,33-75
+17-68,18-69
+93-98,4-93
+19-20,19-79
+41-60,42-61
+92-93,2-93
+6-99,7-99
+52-94,53-94
+61-91,40-92
+76-76,15-77
+17-71,16-78
+23-35,35-48
+1-23,22-99
+11-50,4-80
+5-95,95-96
+98-98,1-99
+13-72,71-71
+35-94,34-34
+1-98,1-97
+9-69,17-69
+22-55,21-55
+42-85,26-41
+14-81,21-82
+24-53,40-53
+76-80,59-77
+16-22,17-23
+5-38,5-6
+18-20,18-19
+3-62,61-63
+8-63,4-63
+21-39,22-40
+43-91,90-92
+35-51,50-51
+14-82,34-82
+34-58,57-57
+20-68,21-68
+16-16,15-72
+38-40,37-41
+46-51,9-48
+4-96,4-97
+30-83,30-41
+3-9,9-10
+72-73,39-72
+6-95,94-94
+58-71,57-72
+11-86,10-55
+9-79,10-78
+12-92,5-93
+10-85,68-85
+11-95,10-12
+11-37,36-56
+28-87,87-97
+21-96,20-20
+71-80,18-81
+23-24,2-23
+7-9,9-38
+37-55,3-55
+72-86,54-87
+48-94,11-94
+68-92,69-87
+51-53,50-53
+39-88,40-87
+3-12,1-13
+5-82,2-82
+5-67,1-68
+94-94,16-95
+31-31,32-96
+9-99,10-99
+62-64,2-63
+11-98,11-97
+15-36,27-35
+39-41,39-40
+11-16,11-15
+14-16,15-53
+14-90,14-91
+20-81,20-82
+59-91,39-90
+39-83,38-83
+76-78,43-77
+69-91,15-69
+67-85,37-84
+20-63,52-63
+38-68,37-38
+33-34,33-92
+37-66,66-83
+3-99,2-99
+77-79,74-79
+45-76,46-75
+59-95,40-53
+10-65,64-66
+41-92,42-56
+6-77,6-77
+2-91,2-3
+16-75,16-83
+64-93,63-92
+13-91,8-90
+12-63,13-13
+98-99,4-99
+60-81,29-61
+31-96,96-96
+89-90,5-90
+34-39,37-40
+73-88,74-89
+37-59,46-59
+23-85,24-84
+8-31,6-32
+16-55,15-16
+37-37,10-77
+39-85,84-86
+2-80,2-82
+11-66,5-12
+34-48,33-35
+8-88,1-73
+39-91,40-92
+69-93,68-95
+18-49,18-77
+89-91,90-91
+98-98,18-98
+14-93,15-92
+11-12,11-46
+25-81,26-80
+27-95,26-27
+14-75,74-76
+53-80,53-81
+43-95,43-96
+27-89,84-90
+13-96,14-89
+12-13,13-47
+45-81,44-49
+95-97,5-96
+31-31,32-94
+74-84,39-85
+7-93,8-92
+30-61,62-97
+22-72,22-69
+58-74,59-75
+1-3,2-61
+4-17,11-16
+52-52,51-53
+31-93,4-92
+23-85,84-85
+17-98,16-97
+8-32,9-48
+7-90,89-90
+12-98,12-87
+62-88,61-61
+34-89,31-88
+13-15,14-98
+9-37,38-78
+23-43,22-44
+7-30,30-31
+43-43,42-84
+2-98,1-98
+15-84,14-85
+45-84,84-84
+14-14,15-42
+2-92,2-91
+90-91,23-90
+35-56,34-34
+2-91,4-90
+34-97,8-97
+9-75,9-75
+3-17,18-98
+55-91,55-92
+54-95,55-99
+42-43,43-74
+34-42,33-42
+13-79,79-79
+15-85,16-85
+25-30,29-29
+19-21,20-21
+37-72,36-48
+27-52,1-53
+27-34,33-33
+1-72,4-72
+28-67,66-66
+61-64,64-91
+42-75,68-74
+96-97,23-96
+3-29,4-13
+13-90,56-90
+7-89,8-89
+21-23,22-47
+95-96,57-96
+59-59,20-59
+4-5,4-90
+31-86,30-85
+13-91,14-91
+62-70,34-36
+66-67,12-67
+4-5,5-33
+10-54,9-55
+73-82,50-73
+59-68,60-68
+36-63,35-47
+30-87,31-86
+18-50,6-51
+18-64,17-64
+87-88,14-88
+66-66,35-75
+27-59,5-28
+6-53,1-52
+12-84,13-83
+36-74,53-75
+9-90,13-90
+94-96,62-95
+44-58,44-86
+26-81,82-92
+1-38,18-39
+81-81,39-80
+9-44,8-45
+15-84,12-15
+6-14,5-76
+15-88,15-87
+59-95,59-92
+78-98,28-78
+66-77,65-76
+49-63,19-64
+1-83,22-64
+19-91,20-92
+14-80,13-80
+14-56,43-55
+29-68,36-69
+46-72,47-73
+14-28,6-27
+39-54,39-40
+37-72,37-38
+96-98,11-97
+77-96,96-97
+47-64,60-91
+1-94,3-93
+81-98,56-98
+75-88,88-88
+40-94,93-93
+19-97,19-99
+18-18,19-97
+49-96,48-95
+5-93,92-93
+17-18,17-84
+77-77,23-77
+25-27,6-27
+6-98,98-98
+17-67,17-66
+4-34,4-50
+40-41,40-99
+38-96,38-95
+23-44,23-44
+38-59,58-58
+88-89,88-88
+40-46,39-83
+66-76,23-76
+15-64,16-65
+6-36,36-37
+17-53,17-52
+41-79,42-78
+1-71,70-71
+5-87,45-87
+25-29,7-29
+9-16,10-26
+69-85,67-86
+25-57,8-57
+2-56,3-55
+57-76,58-93
+7-7,6-94
+26-93,27-94
+3-89,34-88
+52-70,51-65
+7-73,59-72
+66-99,47-65
+16-45,26-45
+72-79,71-78
+79-79,20-80
+23-90,22-91
+71-96,70-96
+68-88,11-72
+31-76,86-87
+13-93,12-94
+20-98,20-98
+6-91,9-90
+7-92,20-86
+11-90,11-62
+8-89,9-88
+31-98,32-94
+19-19,18-73
+31-70,1-71
+2-81,33-82
+11-65,76-83
+11-89,90-97
+81-82,39-82
+1-96,3-95
+9-98,8-98
+22-25,23-25
+16-73,14-72
+5-79,44-80
+95-95,10-96
+1-90,1-97
+13-73,13-72
+95-96,23-96
+4-46,37-47
+19-34,19-99
+50-91,19-90
+5-72,13-68
+16-71,15-72
+8-95,89-94
+4-97,1-98
+45-89,44-90
+35-36,35-97
+28-79,16-78
+88-93,88-92
+18-85,89-92
+20-91,19-92
+6-49,12-48
+12-46,5-51
+36-98,75-97
+6-21,4-21
+5-83,60-84
+40-95,39-96
+96-97,17-97
+21-94,21-72
+19-90,10-20
+9-21,22-65
+4-55,4-54
+8-86,85-85
+3-82,3-81
+36-54,37-53
+15-87,14-14
+7-53,8-52
+96-96,13-97
+3-72,71-71
+1-79,5-78
+23-55,16-60
+15-41,41-76
+64-69,64-97
+3-99,3-99
+3-93,2-93
+16-94,17-94
+10-94,9-94
+26-96,15-96
+16-52,19-52
+12-91,12-92
+52-95,51-99
+2-48,2-3
+19-59,13-58
+6-90,7-7
+73-95,74-99
+7-74,74-74
+21-44,33-45
+41-89,40-42
+94-96,80-95
+77-86,82-85
+53-93,58-92
+5-98,97-97
+9-71,9-72
+6-84,6-84
+90-94,73-84
+1-98,2-9
+20-88,52-87
+9-89,9-96
+12-84,11-11
+2-29,1-2
+2-98,1-99
+44-45,31-44
+7-77,8-98
+3-4,3-6
+2-20,4-21
+36-63,62-62
+1-98,8-99
+43-82,81-81
+18-30,17-29
+49-94,14-49
+28-60,1-59
+2-98,3-98
+22-38,37-39
+2-79,78-95
+25-30,24-31
+1-82,4-82
+4-84,4-83
+8-96,8-8
+27-67,27-68
+9-27,17-27
+8-70,69-69
+19-20,20-88
+13-79,47-79
+2-67,3-68
+8-60,36-60
+29-33,32-34
+9-94,8-9
+15-28,15-28
+1-2,2-53
+43-47,8-55
+26-82,25-26
+10-97,96-96
+28-33,27-39
+77-81,76-82
+28-78,67-79
+14-80,48-79
+76-77,59-76
+11-11,10-89
+8-30,5-17
+11-75,12-75
+13-90,55-91
+14-15,14-39
+94-96,23-95
+20-84,20-89
+28-95,29-94
+3-55,1-54
+3-98,3-97
+44-89,43-89
+58-96,57-74
+26-85,26-26
+52-53,52-91
+2-95,6-96
+3-87,87-97
+9-25,7-26
+8-76,14-75
+14-38,7-43
+66-67,66-80
+49-98,48-50
+77-96,77-97
+29-89,27-28
+42-92,42-91
+9-71,8-8
+40-40,1-39
+26-27,26-89
+77-78,17-77
+20-33,31-34
+64-65,23-65
+31-62,32-60
+61-81,61-80
+57-87,87-87
diff --git a/2022/4/main.cpp b/2022/4/main.cpp
new file mode 100644
index 0000000..47f3e19
--- /dev/null
+++ b/2022/4/main.cpp
@@ -0,0 +1,79 @@
+#include <fstream>
+#include <iostream>
+#include <set>
+#include <string>
+#include <vector>
+
+std::vector<std::string> SplitStr(std::string str, const std::string &delim)
+{
+	std::vector<std::string> rtn;
+
+	for(auto split = str.find(delim); split != std::string::npos; split = str.find(delim))
+	{
+		rtn.push_back(str.substr(0, split));
+		str = str.substr(split + delim.size()); // chop off beginning
+	}
+	if(str.size())
+		rtn.push_back(str);
+
+	return rtn;
+}
+
+int main()
+{
+	std::ifstream ifs("data.txt");
+	if(!ifs.is_open())
+	{
+		std::cerr << "Missing data.txt." << std::endl;
+		return -1;
+	}
+
+	unsigned long total = 0;
+	unsigned long total_pt2 = 0;
+
+	for(std::string line; std::getline(ifs, line); )
+	{
+		if(line == "")
+			continue;
+
+		auto sections = SplitStr(line, ",");
+		if(sections.size() != 2)
+		{
+			std::cerr << "Incorrect amount of data for line: " << line << std::endl;
+			exit(-1);
+		}
+
+		auto elf_a = SplitStr(sections[0], "-");
+		auto elf_b = SplitStr(sections[1], "-");
+
+		if(elf_a.size() != 2 || elf_b.size() != 2)
+		{
+			std::cerr << "Incorrect amount of data for line: " << line << std::endl;
+			exit(-2);
+		}
+
+		int elf_a_min = std::atoi(elf_a[0].c_str());
+		int elf_a_max = std::atoi(elf_a[1].c_str());
+		int elf_b_min = std::atoi(elf_b[0].c_str());
+		int elf_b_max = std::atoi(elf_b[1].c_str());
+
+		if((elf_a_min <= elf_b_min && elf_a_max >= elf_b_max) ||
+		   (elf_b_min <= elf_a_min && elf_b_max >= elf_a_max))
+			++total;
+
+		// sort
+		if(elf_a_min > elf_b_min)
+		{
+			std::swap(elf_a_min, elf_b_min);
+			std::swap(elf_a_max, elf_b_max);
+		}
+
+		if(elf_b_min <= elf_a_max)
+			++total_pt2;
+	}
+
+	std::cout << "    Total: " <<     total << std::endl;
+	std::cout << "PT2 Total: " << total_pt2 << std::endl;
+
+	return 0;
+}