Added day 2

day02/input.txt

@@ -0,0 +1,5 @@
+LLULLLRLDLLLRLUURDDLRDLDURULRLUULUDDUDDLLLURRLDRRLDRRRLDUDLRDLRRDLLDUDUDUDRLUDUUDLLLRDURUDUULUDLRDUUUDUUDURLDUULLRDLULDUURUDRDDLDRLURLRURRDUURLRLUURURUUULLRLLULRUURLULURDLLRRUDLUDULDRDRLRULUURRDRULLRUUUDLRLDLUURRRURDLUDDRRUDRLUDRDLLLLLRULLDUDRLRRDDULDLRUURRRRRLDLDLRDURDRUUURDLRDDDDULURRRRDUURLULLLDLRULRDULRUDLRRLRDLLRLLLUDDLRDRURDDLLLLDUDRDLRURRDLRDDDLDULDRLRULUUDRRRUUULLLURRDDUULURULDURRLLULLDRURUUULRLRDRRUDRDRRDURRUUUULDRDDDUDLDDURLLRR
+LDLRRRUURDLDDRLRRDLLULRULLLUDUUDUDLRULLDRUDRULLDULURDRDDLRURDDULLLLDLRDRDRDDURLURLURLUDRDDRDULULUDDRURRDLLDUURDRDDLRLLURRDLRDDULDLULURDRDLUDRRUUDULLULURRDUDRUUUDRULDLDURLRRUDURLDLRRUURRRURDLUDRLDUDRRUDUURURUDDUUDRDULRDLUDRRRLDRURLLRDDDLUDRDUDURDDDRRDDRRRLLRRDDLDDLRUURRURDLLDRLRRDLLUDRRRURURLRDRLLRLRLRULLRURLDLRRULLRRRDULUUULDRDLLURDDLDLRDRLUUDLLUDDLDRRLDLRUDRUDLLUURLLULURUDUDRLULLUDRURDDLDLDDUDLRDDRRURLRLLUDDUDRUURRURRULDRLDDRLLRRLDDURRDLDULLLURULLLRUURLRRRRUUULRLLLURRLRLRUDRDUUUDUUUDDLULLDLLLLDLDRULDRUUULDDDLURLDLRLULRUDDDDURDDLU
+RURLURRDLDULLULDDDLRUULLUURLRUDRUDRRUDDLDDDDRRDLRURLRURLDDDUDDUURRDRULDRRRULRDRDDLRUDULRLURDUUDRRLDLRDRURDLDRRRRDRURUUDDDLLRDRDUDUDUDLLULURULRRLRURUULUULDDDDURULRULLRUDUURLURDUDLUDLUDRLLDUUDUULRLRLUUDRDULDULRURDRRRULRUDLRURDDULUDULLRLRURURUULLULDRURLLRRUUDDUUURRDLURUURULRDRRDDUDULRDDLUDLURURUURDRULLRDDLLRDDLDRDUDRRDLUURRLRLUURRULUDURLDDRLLURRDDDLDDRURULLDDRLUDDLRLURDUDULLRDULLLDLLUDDRUDRUDDUUDRDRULRL
+RLRDRDULULUDLUDRDRLUDLDLLUDURULDDDUDLRURLLRLRLDLDRLDURDLRRURLULLULURLLDRRDRLUDRLRDLLULRULURRURURUULRDUDLLRDLRRRRRLUURDRRRDLRUDLLDLLDLRUUUDLLLDDDLRDULLRUUDDRLDDURRRDLRLRLDDDDLRDRULLUURUUDRRLLRLLRDDLLRURRRRDRULRRLLRLLLRLDRRLDDDURRURLDURUURRLRLRLDRURULLRLRUDLDUURDLLRLDLURUUUDLLRDRDDDDDDRLDRRRLRRRRURUDLDDRDLLURUDLRRLDDDLUDUDUULRDULULUDDULUUDLLLLRLDDUUULRLRDULURDURRRURRULURRRDRDLDDURDLURUDURRRDDRLRLUDLUDDLUULLDURLURDDUDDLRUUUDRLLDRURL
+ULUDLLUDDULRUURDRURDUDUDLUURDDDRRLUDURURDRURRLDRDURLRLLRRDDRRDRRRUULURUDURUDULRRRRDDLDURRLRRDUDDDRLLLULDRLRLURRDUURDURRRURRDLUDUDDRLDLURRRDDRLLRDRDDRDURRRRLURRLUDDURRULRUDUDULDRUDDRULLUUULDURRRLDRULLURULLRUDLDUDDLDULDLUUDRULULDLLDRULLRUULDUDUUDRLRRLDLUULUDLLDDRLRRDDLLURURDULRRDDRURDRLRLULDLDURULLUUUDURURDLDUDDDDUUULUDLUURRULLDLRLURDLURLRLDDURRLDDRRRDUUULLUULDLLDLLDDRLRRUDLULDRLULDULULRRLRULUUURURUUURDUUDDURLLUDDRLRDDLUURRUULRDLDDRLULUULRDRURLUURDRDUURUDLRR

day02/part1.js

@@ -0,0 +1,27 @@
+var fs = require("fs");
+var input = fs.readFileSync("input.txt").toString().replace(/\r/g, "");
+var moves = {
+  U: -3,
+  D: 3,
+  L: -1,
+  R: 1
+};
+var prev = 5;
+var locations = input.split("\n").slice(0, -1).map(function(curr, i, arr){
+  return curr.split("").reduce(function(pos, char){
+    var newpos = pos + moves[char];
+    if(Math.abs(moves[char]) == 1){
+      if(Math.abs((newpos - 1)%3 - (pos - 1)%3) == 1){
+        prev = newpos;
+      }
+    }
+    else{
+      if(newpos >= 1 && newpos <= 9){
+        prev = newpos;
+      }
+    }
+    return prev;
+  }, prev);
+});
+
+console.log(locations.join(""));

day02/part2.js

@@ -0,0 +1,35 @@
+var board = [
+  {"0": 1},
+  {"-1": 2, "0": 3, "1": 4},
+  {"-2": 5, "-1": 6, "0": 7, "1": 8, "2": 9},
+  {"-1": "A", "0": "B", "1": "C"},
+  {"0": "D"}
+];
+var moves = {
+  U: [-1, 0],
+  D: [1, 0],
+  L: [0, -1],
+  R: [0, 1],
+}
+var pos = [2, -2];
+var locations = [];
+var fs = require("fs");
+var input = fs.readFileSync("input.txt").toString().replace(/\r/g, "");
+input.split("\n").slice(0, -1).forEach(function(line){
+  if(line){
+    line.split("").forEach(function(char){
+      if(char){
+        var move = moves[char];
+        var newpos = pos.map((a, x)=>(a + move[x]));
+        if(board[newpos[0]]){
+          if(board[newpos[0]][newpos[1]]){
+            pos = newpos;
+          }
+        }
+      }
+    });
+  }
+  console.log(board[pos[0]][pos[1]]);
+  locations.push(board[pos[0]][pos[1]]);
+});
+console.log(locations.join(""));