Day 5 js

R/.Rproj.user/shared/notebooks/paths

@@ -17,6 +17,7 @@
 /Users/hrbrmstr/Development/2020-code-advent/js/02.js="BC8B36A1"
 /Users/hrbrmstr/Development/2020-code-advent/js/03.js="E24752E6"
 /Users/hrbrmstr/Development/2020-code-advent/js/04.js="CB04A9CB"
+/Users/hrbrmstr/Development/2020-code-advent/js/05.js="AFC9E61D"
 /Users/hrbrmstr/Development/2020-code-advent/scala/01/01/src/main/scala/Main.scala="8F03A1D5"
 /Users/hrbrmstr/Development/2020-code-advent/scala/02/02/src/main/scala/Main.scala="418A1A5F"
 /private/tmp/test.txt="DFC19AA4"

R/05.R

@@ -81,7 +81,7 @@ strsplit(input, "") %>%
 
     rng <- c(0, 7)
 
-    for (part in .x[8:10]) {
+    for (part in .x[7:10]) {
       amt <- floor((rng[2] - rng[1])/2) + 1
       if (part == "L") {
         rng[2] <- rng[2] - amt

R/05.py

@@ -4,7 +4,7 @@ import numpy as np
 with open("../input/05-01.txt") as f:
   input = f.read().splitlines()
 
-def partition(seq, lb, ub, trigger, ret):
+def partition(seq, lb, ub, trigger):
   
   for idx, part in enumerate(seq):
     amt = math.floor((ub - lb)/2) + 1
@@ -18,8 +18,8 @@ def partition(seq, lb, ub, trigger, ret):
 
 def get_seat(x):
   return(
-    (partition(x[0:7],  0, 127, "F", "F") * 8) + 
-     partition(x[7:10], 0,   7, "L", "L") 
+    (partition(x[0:7],  0, 127, "F") * 8) + 
+     partition(x[7:10], 0,   7, "L") 
   )
 
 res = [ get_seat(bpass) for bpass in input ]
@@ -33,11 +33,9 @@ max(res)
 # 05-02
 
 res.insert(0, res[0])
-idx = np.where(np.diff(res) > 1)
-res.pop(0)
-res[idx[0][0]] - 1
-
-
 
+idx = np.where(np.diff(res) > 1)
 
+res.pop(0)
 
+res[idx[0][0]] - 1

js/04.js

@@ -17,7 +17,7 @@ Number.prototype.between = function(a, b) {
   return(this >= min && this <= max)
 };
 
-  req_keys = new Set([ "byr", "iyr", "eyr", "hgt", "hcl", "ecl", "pid" ])
+req_keys = new Set([ "byr", "iyr", "eyr", "hgt", "hcl", "ecl", "pid" ])
 
 input = []
 

js/05.js

@@ -0,0 +1,59 @@
+var fs = require("fs")
+
+//input = fs.readFileSync("/tmp/test.txt", "utf-8")
+input = fs.readFileSync("../input/05-01.txt", "utf-8")
+
+console.log(input)
+
+res = input
+  .split("\n")
+  .filter((x) => x.length > 1)
+  .map((line) => {
+
+    lb = 0
+    ub = 127
+
+    for (part of line.substr(0, 7)) {
+      amt = Math.floor((ub - lb)/2) + 1
+      if (part === "F") {
+        ub -= amt
+      } else {
+        lb += amt
+      }
+    }
+
+    row = (line.charAt(6) === "F") ? lb : ub
+
+    lb = 0
+    ub = 7
+
+    for (part of line.substr(7, 3)) {
+      amt = Math.floor((ub - lb)/2) + 1
+      if (part === "L") {
+        ub -= amt
+      } else {
+        lb += amt
+      }
+    }
+
+    seat = (line.charAt(9) === "R") ? lb : ub
+
+    return((row * 8) + seat)
+
+  }).sort()
+
+// 05-01
+
+console.log(Math.max(...res))
+
+// 05-02
+
+diff = res.map((n, i, a) => i ? n - a[i-1] : 0 - n)
+
+console.log(res[diff.findIndex((x) => x > 1)] - 1)
+
+
+
+
+
+