@@ -2,7 +2,6 @@ package main
22
33import (
44 "fmt"
5- "strconv"
65)
76
87// SolveDay6 solves the puzzle for day6
@@ -47,18 +46,31 @@ func solveDay6Part1(lines *[]string) {
4746func solveDay6Part2 (lines * []string ) {
4847 solution := 0
4948
50- for i , lineI := range * lines {
51- valueI , _ := strconv .Atoi (lineI )
52- for j , lineJ := range (* lines )[i + 1 :] {
53- valueJ , _ := strconv .Atoi (lineJ )
54- for _ , lineK := range (* lines )[j + 1 :] {
55- valueK , _ := strconv .Atoi (lineK )
56- if valueI + valueJ + valueK == 2020 {
57- solution = valueI * valueJ * valueK
58- break
49+ groupAnswersMap := map [string ]int {}
50+ personCount := 0
51+ * lines = append (* lines , "" ) // append an empty line as the differentiator between groups
52+ for _ , personAnswers := range * lines {
53+ 54+ if personAnswers != "" {
55+ personCount ++
56+ for i := 0 ; i < len (personAnswers ); i ++ {
57+ singleAnswer := personAnswers [i ]
58+ groupAnswersMap [string (singleAnswer )] = groupAnswersMap [string (singleAnswer )] + 1
59+ }
60+ fmt .Println (groupAnswersMap )
61+ } else {
62+ fmt .Println ("eog" )
63+ for _ , v := range groupAnswersMap {
64+ if v == personCount {
65+ solution ++
5966 }
6067 }
68+ 69+ groupAnswersMap = map [string ]int {}
70+ personCount = 0
6171 }
6272 }
73+ 6374 fmt .Println (solution )
75+ 6476}
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