Rename folders

02/main.go

@@ -0,0 +1,115 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"math"
+	"os"
+//	"slices"
+	"strconv"
+	"strings"
+)
+
+func rmIndex(s []int, i int) []int {
+  result := make([]int, 0)
+  result = append(result, s[:i]...)
+  result = append(result, s[i+1:]...)
+  return result
+}
+
+func isSorted(s []int) bool {
+  n := len(s)
+  asc := true
+  desc := true
+  for i := 1; i < n; i++ {
+    if s[i-1] < s[i] {
+      desc = false
+    }
+    if s[i-1] > s[i] {
+      asc = false
+    }
+  }
+  if asc || desc {
+    return true
+  } else {
+    return false
+  }
+}
+
+func isSafe(r []int) bool {
+  if isSorted(r) {
+    for i := range r {
+      if i < len(r)-1 {
+        if math.Abs(float64(r[i]-r[i+1])) < 1 || math.Abs(float64(r[i]-r[i+1])) > 3 {
+          return false
+        }
+      }
+    }
+    return true
+  } else {
+    return false
+  }
+}
+
+func main() {
+  file, err := os.Open("input")
+  if err != nil {
+    panic(err)
+  }
+  defer file.Close()
+  scanner := bufio.NewScanner(file)
+  reports := [][]int{}
+  for scanner.Scan() {
+    line := scanner.Text()
+    parts := strings.Fields(line)
+    levels := []int{}
+    for i := range parts {
+      level,_ := strconv.Atoi(parts[i])
+      levels = append(levels, level)
+    }
+    reports = append(reports, levels)
+  }
+  safeCount := 0
+  dampSafeCount := 0
+  for i := range reports {
+    if isSafe(reports[i]) {
+      safeCount++
+    } else {
+      for j := range reports[i] {
+        dampenedReport := rmIndex(reports[i], j)
+        if isSafe(dampenedReport) {
+          dampSafeCount++
+          break
+        }
+      }
+    }
+  }
+  fmt.Println("Safe Reports: ", safeCount)
+  fmt.Println("Dampened Safe Reports: ", dampSafeCount)
+  fmt.Println("Total Safe Reports: ", safeCount+dampSafeCount)
+//  sorted := 0
+//  unsorted := 0
+//  sortedUnsafe := 0
+//  for i := range reports {
+//    if ! isSorted(reports[i]) {
+//      unsorted++
+//      continue
+//    } else {
+//      sorted++
+//      for j := range reports[i] {
+//        if j < len(reports[i])-1 {
+//          if math.Abs(float64(reports[i][j]-reports[i][j+1])) < 1 || math.Abs(float64(reports[i][j]-reports[i][j+1])) > 3 {
+//            fmt.Println(reports[i])
+//            sortedUnsafe++
+//            break
+//          }
+//        }
+//      }
+//    }
+//  }
+//  fmt.Println(len(reports))
+//  fmt.Println("sorted lines: ", sorted)
+//  fmt.Println("unsorted lines: ", unsorted)
+//  fmt.Println("sortedUnsafe lines: ", sortedUnsafe)
+//  fmt.Println("safeCount math : ", len(reports) - unsorted - sortedUnsafe)
+}