16/done

16.go

@@ -0,0 +1,125 @@
+package main
+// 237786x - 242142x
+import (
+    "fmt"
+    "os"
+    "io/ioutil"
+    "net/http"
+    "strings"
+    "regexp"
+)
+
+var A map[string] []string // char:ascii graphic
+var D map[string] [][2]int // char:left- and right- (not incl.) most # index
+var wall [6]string
+var input string
+
+func main() {
+    fmt.Println(input)
+    jettison := 0
+    for i, c := range input {
+        key := string(c)
+        for _, line:= range A[key] { fmt.Println("ln/", YELL(line) ) }
+        gap := 42
+        if i > 0 {
+            prevkey := string( input[i - 1] )
+            for j, _ := range wall {
+                L, R := D[prevkey][j][1], D[key][j][0]
+                if gap > R + len(A[prevkey][j]) - L {
+                    gap = R + len(A[prevkey][j]) - L
+                }
+            }
+        }
+        for j, _ := range wall { wall[j] += A[key][j] }
+        fmt.Println(YELL("gap/"), gap)
+        if i == 0 { continue }
+        if gap > 1 {
+            jettison += (gap - 1) * 6
+        } else if gap == 0 {
+            jettison -= 6
+        } else if gap != 1 { panic(YELL("never here/")) }
+        fmt.Println("gap/", gap, "jet/", jettison)
+    }
+    // print out entire graphic
+    //for _, line := range wall { fmt.Println(line, len(line)) }
+    fmt.Println("all/", count_sp())
+    fmt.Println("jet/", jettison)
+    fmt.Println("res/", count_sp() - jettison)
+}
+
+func count_sp() int {
+    res := 0
+    for i := range wall {
+        for j := range wall[i] {
+            if string(wall[i][j]) == " " { res++ }
+        }
+    }
+    return res
+}
+
+func init() {
+
+    // input
+    URL := "https://challenges.aquaq.co.uk/challenge/16/input.txt"
+    input = strings.TrimSpace(string(getbody(URL)))
+
+    // wall - playground
+    for i := 0; i < 6; i++ { wall[i] = "" }
+
+    // alphabet
+    URL = "https://challenges.aquaq.co.uk/challenge/16"
+    re := regexp.MustCompile(`(?s)found <a href="(.*?)">here</a>`)
+    txt := re.FindAllStringSubmatch( string(getbody(URL)), -1 )[0][1]
+    URL = "https://challenges.aquaq.co.uk" + txt
+    lines := strings.Split(string(getbody(URL)), "\n")
+    A = make(map[string][]string)
+    D = make(map[string][][2]int)
+    letter := 'A'
+    temp := []string{}
+    tempd := [][2]int{}
+    for i, line := range lines {
+        N := len(line)
+        l, r := 0, N - 1
+        for l < N && line[l] != '#' { l++ }
+        for r > -1 && line[r] != '#' { r-- }
+        if (i + 1) % 6 == 0 {
+            key := string(letter)
+
+            // add to A
+            temp = append(temp, line)
+            A[key] = temp
+            temp = []string{}
+
+            // add to D
+            tempd = append (tempd, [2]int{l, r + 1})
+            D[key] = tempd
+            tempd = [][2]int{}
+            letter++
+        } else {
+            temp = append(temp, line)
+            tempd = append(tempd, [2]int{l, r + 1})
+        }
+    }
+}
+
+func getbody(URL string) []uint8 {
+    session_value := os.Getenv("COOK")
+    if session_value == "" {
+        panic("session/empty")
+    }
+    conn := &http.Client {}
+    req, _ := http.NewRequest("GET", URL, nil)
+    session := &http.Cookie {
+        Name:   "session",
+        Value:  session_value,
+    }
+    req.AddCookie( session )
+    resp, _ := conn.Do(req)
+    defer resp.Body.Close()
+    body, _ := ioutil.ReadAll(resp.Body)
+    return body
+}
+
+const Yell, Cyan, Rest string = "\033[33m", "\033[36m", "\033[0m"
+func YELL(s string)string{ return Yell + s + Rest }
+func CYAN(s string)string{ return Cyan + s + Rest }