Day 5

day05/ex2/main.go

@@ -0,0 +1,27 @@
+package main
+
+import (
+  "bufio"
+  "fmt"
+  "os"
+  "aoc2022/day05/common"
+)
+
+func main() {
+  stacks, movements := common.Parse(*bufio.NewScanner(os.Stdin))
+
+  for _, movement := range(movements) {
+    top := []byte{}
+    for i := 0; i < movement.GetN(); i++ {
+      top = append(top, stacks[movement.GetStart() - 1].Pop())
+    }
+    for i := len(top) - 1; i >= 0; i-- {
+      stacks[movement.GetEnd() - 1].Push(top[i])
+    }
+  }
+
+  for _, stack := range(stacks) {
+    fmt.Print(string(stack.Peek()))
+  }
+  fmt.Println()
+}