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-rw-r--r--2021/02/first.b985
-rw-r--r--2021/02/first.go42
-rw-r--r--2021/02/input1000
-rw-r--r--2021/02/second.b985
-rw-r--r--2021/02/second.go44
5 files changed, 1096 insertions, 0 deletions
diff --git a/2021/02/first.b98 b/2021/02/first.b98
new file mode 100644
index 0000000..fd7a917
--- /dev/null
+++ b/2021/02/first.b98
@@ -0,0 +1,5 @@
+v pos in 0,0, depth in 1,0
+>00p10p>#;~:'f-#v_$&00g+00p v@,a.*g01g00;
+ >'d-#v_$&10g+10pv
+ >&10g\-10p v
+ ^ ;,a.g01.g00; ~ < # we do not forget to strip the \n from the input
diff --git a/2021/02/first.go b/2021/02/first.go
new file mode 100644
index 0000000..1550bcb
--- /dev/null
+++ b/2021/02/first.go
@@ -0,0 +1,42 @@
+package main
+
+import (
+ "bufio"
+ "fmt"
+ "log"
+ "os"
+ "strconv"
+ "strings"
+)
+
+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)
+
+ pos := 0
+ depth := 0
+ for scanner.Scan() {
+ elts := strings.Split(scanner.Text(), " ")
+ i, err := strconv.Atoi(elts[1])
+ if err != nil {
+ log.Fatalf("%+v", err)
+ }
+ switch elts[0] {
+ case "forward":
+ pos += i
+ case "down":
+ depth += i
+ case "up":
+ depth -= i
+ default:
+ panic(elts[0])
+ }
+ }
+ fmt.Println(pos * depth)
+}
diff --git a/2021/02/input b/2021/02/input
new file mode 100644
index 0000000..594c25f
--- /dev/null
+++ b/2021/02/input
@@ -0,0 +1,1000 @@
+forward 5
+down 9
+forward 2
+up 2
+forward 4
+forward 4
+up 5
+down 3
+forward 2
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+down 7
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+down 2
+forward 1
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diff --git a/2021/02/second.b98 b/2021/02/second.b98
new file mode 100644
index 0000000..2c5504c
--- /dev/null
+++ b/2021/02/second.b98
@@ -0,0 +1,5 @@
+v pos in 0,0, depth in 1,0, aim in 2,0
+>00p10p20p>#;~:'f-#v_$&:00g+00p v@,a.*g01g00;
+ >'d-#v_$&20g+20pv>20g*10g+10pv
+ >&20g\-20p v <
+ ^ ;,a.g01.g00; ~ << # we do not forget to strip the \n from the input
diff --git a/2021/02/second.go b/2021/02/second.go
new file mode 100644
index 0000000..e6d0e94
--- /dev/null
+++ b/2021/02/second.go
@@ -0,0 +1,44 @@
+package main
+
+import (
+ "bufio"
+ "fmt"
+ "log"
+ "os"
+ "strconv"
+ "strings"
+)
+
+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)
+
+ aim := 0
+ pos := 0
+ depth := 0
+ for scanner.Scan() {
+ elts := strings.Split(scanner.Text(), " ")
+ i, err := strconv.Atoi(elts[1])
+ if err != nil {
+ log.Fatalf("%+v", err)
+ }
+ switch elts[0] {
+ case "forward":
+ pos += i
+ depth += i * aim
+ case "down":
+ aim += i
+ case "up":
+ aim -= i
+ default:
+ panic(elts[0])
+ }
+ }
+ fmt.Println(pos * depth)
+}