diff options
author | Julien Dessaux | 2021-12-07 14:26:36 +0100 |
---|---|---|
committer | Julien Dessaux | 2021-12-07 14:26:36 +0100 |
commit | 6ed18289c89eaff3557907df63cf58bd2009b3ee (patch) | |
tree | 903d730030c18ab25c212938794c1c03f65f800f /2021/01/second.go | |
parent | Initial import (diff) | |
download | advent-of-code-6ed18289c89eaff3557907df63cf58bd2009b3ee.tar.gz advent-of-code-6ed18289c89eaff3557907df63cf58bd2009b3ee.tar.bz2 advent-of-code-6ed18289c89eaff3557907df63cf58bd2009b3ee.zip |
Added the first days
Diffstat (limited to '')
-rw-r--r-- | 2021/01/second.go | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/2021/01/second.go b/2021/01/second.go new file mode 100644 index 0000000..bea4b05 --- /dev/null +++ b/2021/01/second.go @@ -0,0 +1,57 @@ +package main + +import ( + "bufio" + "fmt" + "log" + "os" + "strconv" +) + +func main() { + f, err := os.Open("input") + if err != nil { + log.Fatalf("%+v", err) + } + defer f.Close() + + scanner := bufio.NewScanner(f) + scanner.Split(bufio.ScanLines) + + scanner.Scan() + A, err := strconv.Atoi(scanner.Text()) + if err != nil { + log.Fatalf("%+v", err) + } + scanner.Scan() + B, err := strconv.Atoi(scanner.Text()) + if err != nil { + log.Fatalf("%+v", err) + } + A += B + scanner.Scan() + C, err := strconv.Atoi(scanner.Text()) + if err != nil { + log.Fatalf("%+v", err) + } + B += C + A += C + + result := 0 + + for scanner.Scan() { + D, err := strconv.Atoi(scanner.Text()) + if err != nil { + log.Fatalf("%+v", err) + } + C += D + B += D + if B > A { + result++ + } + A = B + B = C + C = D + } + fmt.Println(result) +} |