commit 9686014fd23301fdacd9c599d1fa545e5c800374
parent f9d8317ebea47344fb208b9ba1bf0406527dc10e
Author: finwo <finwo@pm.me>
Date: Thu, 1 Dec 2022 10:36:30 +0100
2022/01 solution
Diffstat:
6 files changed, 390 insertions(+), 0 deletions(-)
diff --git a/2022/common/char-for-char.js b/2022/common/char-for-char.js
@@ -0,0 +1,9 @@
+const through = require('through2');
+
+module.exports = () => through(function(chunk, enc, cb) {
+ chunk = chunk.toString();
+ for(let i = 0; i < chunk.length; i++) {
+ this.push(chunk.charAt(i));
+ }
+ cb();
+});
diff --git a/2022/common/line-for-line.js b/2022/common/line-for-line.js
@@ -0,0 +1,23 @@
+const through = require('through2');
+const multipipe = require('multipipe');
+const characterize = require('./char-for-char');
+const normalize = require('./normalize-newlines.js');
+
+module.exports = () =>
+ multipipe(
+ characterize(),
+ normalize(),
+ through.obj(function(chunk, enc, cb) {
+ if (!this.buf) this.buf = Buffer.alloc(0);
+ if (chunk.toString() == '\n') {
+ this.push(this.buf);
+ this.buf = Buffer.alloc(0);
+ return cb();
+ }
+ const buf = Buffer.alloc(this.buf.length + chunk.length);
+ this.buf.copy(buf, 0);
+ chunk.copy(buf, this.buf.length);
+ this.buf = buf;
+ cb();
+ })
+ )
diff --git a/2022/common/normalize-newlines.js b/2022/common/normalize-newlines.js
@@ -0,0 +1,23 @@
+const through = require('through2');
+
+module.exports = () => through(function(chunk, enc, cb) {
+ chunk = chunk.toString();
+ switch(chunk) {
+ case '\r':
+ if (this.osx) {
+ this.push('\n');
+ }
+ this.osx = true;
+ break;
+ default:
+ if (this.osx) {
+ if (chunk !== '\n') {
+ this.push('\n');
+ }
+ this.osx = false;
+ }
+ this.push(chunk);
+ break;
+ }
+ cb();
+});
diff --git a/2022/day-01/index.js b/2022/day-01/index.js
@@ -0,0 +1,32 @@
+const fs = require('fs');
+const through = require('through2');
+const line_for_line = require('../common/line-for-line');
+
+// Fully expecting other operations later, otherwise would've just kept a single counter
+const elfs = [0];
+
+fs.createReadStream('input')
+ .pipe(line_for_line())
+
+ // Business logic
+ .pipe(through(function(line, enc, cb) {
+ line = line.toString();
+
+ // Handle elf creation
+ if (!line) {
+ elfs.push(0);
+ return cb();
+ }
+ const idx = elfs.length - 1;
+
+ // Increase counter
+ elfs[idx] += parseInt(line);
+ cb();
+ }))
+
+ .on('finish', () => {
+ console.log('Highest', Math.max(...elfs));
+
+ const top3 = elfs.sort((a,b) => b-a).slice(0,3);
+ console.log('Top3', top3.reduce((a,v) => a+v, 0));
+ })
diff --git a/2022/package-lock.json b/2022/package-lock.json
@@ -0,0 +1,284 @@
+{
+ "name": "2022",
+ "version": "1.0.0",
+ "lockfileVersion": 2,
+ "requires": true,
+ "packages": {
+ "": {
+ "name": "2022",
+ "version": "1.0.0",
+ "license": "MIT",
+ "dependencies": {
+ "through2": "^4.0.2"
+ },
+ "devDependencies": {
+ "@types/node": "^18.11.10",
+ "multipipe": "^4.0.0"
+ }
+ },
+ "node_modules/@types/node": {
+ "version": "18.11.10",
+ "resolved": "https://registry.npmjs.org/@types/node/-/node-18.11.10.tgz",
+ "integrity": "sha512-juG3RWMBOqcOuXC643OAdSA525V44cVgGV6dUDuiFtss+8Fk5x1hI93Rsld43VeJVIeqlP9I7Fn9/qaVqoEAuQ==",
+ "dev": true
+ },
+ "node_modules/core-util-is": {
+ "version": "1.0.3",
+ "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.3.tgz",
+ "integrity": "sha512-ZQBvi1DcpJ4GDqanjucZ2Hj3wEO5pZDS89BWbkcrvdxksJorwUDDZamX9ldFkp9aw2lmBDLgkObEA4DWNJ9FYQ==",
+ "dev": true
+ },
+ "node_modules/duplexer2": {
+ "version": "0.1.4",
+ "resolved": "https://registry.npmjs.org/duplexer2/-/duplexer2-0.1.4.tgz",
+ "integrity": "sha512-asLFVfWWtJ90ZyOUHMqk7/S2w2guQKxUI2itj3d92ADHhxUSbCMGi1f1cBcJ7xM1To+pE/Khbwo1yuNbMEPKeA==",
+ "dev": true,
+ "dependencies": {
+ "readable-stream": "^2.0.2"
+ }
+ },
+ "node_modules/duplexer2/node_modules/readable-stream": {
+ "version": "2.3.7",
+ "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.7.tgz",
+ "integrity": "sha512-Ebho8K4jIbHAxnuxi7o42OrZgF/ZTNcsZj6nRKyUmkhLFq8CHItp/fy6hQZuZmP/n3yZ9VBUbp4zz/mX8hmYPw==",
+ "dev": true,
+ "dependencies": {
+ "core-util-is": "~1.0.0",
+ "inherits": "~2.0.3",
+ "isarray": "~1.0.0",
+ "process-nextick-args": "~2.0.0",
+ "safe-buffer": "~5.1.1",
+ "string_decoder": "~1.1.1",
+ "util-deprecate": "~1.0.1"
+ }
+ },
+ "node_modules/duplexer2/node_modules/safe-buffer": {
+ "version": "5.1.2",
+ "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
+ "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==",
+ "dev": true
+ },
+ "node_modules/duplexer2/node_modules/string_decoder": {
+ "version": "1.1.1",
+ "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
+ "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
+ "dev": true,
+ "dependencies": {
+ "safe-buffer": "~5.1.0"
+ }
+ },
+ "node_modules/inherits": {
+ "version": "2.0.4",
+ "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
+ "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ=="
+ },
+ "node_modules/isarray": {
+ "version": "1.0.0",
+ "resolved": "https://registry.npmjs.org/isarray/-/isarray-1.0.0.tgz",
+ "integrity": "sha512-VLghIWNM6ELQzo7zwmcg0NmTVyWKYjvIeM83yjp0wRDTmUnrM678fQbcKBo6n2CJEF0szoG//ytg+TKla89ALQ==",
+ "dev": true
+ },
+ "node_modules/multipipe": {
+ "version": "4.0.0",
+ "resolved": "https://registry.npmjs.org/multipipe/-/multipipe-4.0.0.tgz",
+ "integrity": "sha512-jzcEAzFXoWwWwUbvHCNPwBlTz3WCWe/jPcXSmTfbo/VjRwRTfvLZ/bdvtiTdqCe8d4otCSsPCbhGYcX+eggpKQ==",
+ "dev": true,
+ "dependencies": {
+ "duplexer2": "^0.1.2",
+ "object-assign": "^4.1.0"
+ }
+ },
+ "node_modules/object-assign": {
+ "version": "4.1.1",
+ "resolved": "https://registry.npmjs.org/object-assign/-/object-assign-4.1.1.tgz",
+ "integrity": "sha512-rJgTQnkUnH1sFw8yT6VSU3zD3sWmu6sZhIseY8VX+GRu3P6F7Fu+JNDoXfklElbLJSnc3FUQHVe4cU5hj+BcUg==",
+ "dev": true,
+ "engines": {
+ "node": ">=0.10.0"
+ }
+ },
+ "node_modules/process-nextick-args": {
+ "version": "2.0.1",
+ "resolved": "https://registry.npmjs.org/process-nextick-args/-/process-nextick-args-2.0.1.tgz",
+ "integrity": "sha512-3ouUOpQhtgrbOa17J7+uxOTpITYWaGP7/AhoR3+A+/1e9skrzelGi/dXzEYyvbxubEF6Wn2ypscTKiKJFFn1ag==",
+ "dev": true
+ },
+ "node_modules/readable-stream": {
+ "version": "3.6.0",
+ "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.6.0.tgz",
+ "integrity": "sha512-BViHy7LKeTz4oNnkcLJ+lVSL6vpiFeX6/d3oSH8zCW7UxP2onchk+vTGB143xuFjHS3deTgkKoXXymXqymiIdA==",
+ "dependencies": {
+ "inherits": "^2.0.3",
+ "string_decoder": "^1.1.1",
+ "util-deprecate": "^1.0.1"
+ },
+ "engines": {
+ "node": ">= 6"
+ }
+ },
+ "node_modules/safe-buffer": {
+ "version": "5.2.1",
+ "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
+ "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==",
+ "funding": [
+ {
+ "type": "github",
+ "url": "https://github.com/sponsors/feross"
+ },
+ {
+ "type": "patreon",
+ "url": "https://www.patreon.com/feross"
+ },
+ {
+ "type": "consulting",
+ "url": "https://feross.org/support"
+ }
+ ]
+ },
+ "node_modules/string_decoder": {
+ "version": "1.3.0",
+ "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.3.0.tgz",
+ "integrity": "sha512-hkRX8U1WjJFd8LsDJ2yQ/wWWxaopEsABU1XfkM8A+j0+85JAGppt16cr1Whg6KIbb4okU6Mql6BOj+uup/wKeA==",
+ "dependencies": {
+ "safe-buffer": "~5.2.0"
+ }
+ },
+ "node_modules/through2": {
+ "version": "4.0.2",
+ "resolved": "https://registry.npmjs.org/through2/-/through2-4.0.2.tgz",
+ "integrity": "sha512-iOqSav00cVxEEICeD7TjLB1sueEL+81Wpzp2bY17uZjZN0pWZPuo4suZ/61VujxmqSGFfgOcNuTZ85QJwNZQpw==",
+ "dependencies": {
+ "readable-stream": "3"
+ }
+ },
+ "node_modules/util-deprecate": {
+ "version": "1.0.2",
+ "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
+ "integrity": "sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw=="
+ }
+ },
+ "dependencies": {
+ "@types/node": {
+ "version": "18.11.10",
+ "resolved": "https://registry.npmjs.org/@types/node/-/node-18.11.10.tgz",
+ "integrity": "sha512-juG3RWMBOqcOuXC643OAdSA525V44cVgGV6dUDuiFtss+8Fk5x1hI93Rsld43VeJVIeqlP9I7Fn9/qaVqoEAuQ==",
+ "dev": true
+ },
+ "core-util-is": {
+ "version": "1.0.3",
+ "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.3.tgz",
+ "integrity": "sha512-ZQBvi1DcpJ4GDqanjucZ2Hj3wEO5pZDS89BWbkcrvdxksJorwUDDZamX9ldFkp9aw2lmBDLgkObEA4DWNJ9FYQ==",
+ "dev": true
+ },
+ "duplexer2": {
+ "version": "0.1.4",
+ "resolved": "https://registry.npmjs.org/duplexer2/-/duplexer2-0.1.4.tgz",
+ "integrity": "sha512-asLFVfWWtJ90ZyOUHMqk7/S2w2guQKxUI2itj3d92ADHhxUSbCMGi1f1cBcJ7xM1To+pE/Khbwo1yuNbMEPKeA==",
+ "dev": true,
+ "requires": {
+ "readable-stream": "^2.0.2"
+ },
+ "dependencies": {
+ "readable-stream": {
+ "version": "2.3.7",
+ "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.7.tgz",
+ "integrity": "sha512-Ebho8K4jIbHAxnuxi7o42OrZgF/ZTNcsZj6nRKyUmkhLFq8CHItp/fy6hQZuZmP/n3yZ9VBUbp4zz/mX8hmYPw==",
+ "dev": true,
+ "requires": {
+ "core-util-is": "~1.0.0",
+ "inherits": "~2.0.3",
+ "isarray": "~1.0.0",
+ "process-nextick-args": "~2.0.0",
+ "safe-buffer": "~5.1.1",
+ "string_decoder": "~1.1.1",
+ "util-deprecate": "~1.0.1"
+ }
+ },
+ "safe-buffer": {
+ "version": "5.1.2",
+ "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
+ "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==",
+ "dev": true
+ },
+ "string_decoder": {
+ "version": "1.1.1",
+ "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
+ "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
+ "dev": true,
+ "requires": {
+ "safe-buffer": "~5.1.0"
+ }
+ }
+ }
+ },
+ "inherits": {
+ "version": "2.0.4",
+ "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
+ "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ=="
+ },
+ "isarray": {
+ "version": "1.0.0",
+ "resolved": "https://registry.npmjs.org/isarray/-/isarray-1.0.0.tgz",
+ "integrity": "sha512-VLghIWNM6ELQzo7zwmcg0NmTVyWKYjvIeM83yjp0wRDTmUnrM678fQbcKBo6n2CJEF0szoG//ytg+TKla89ALQ==",
+ "dev": true
+ },
+ "multipipe": {
+ "version": "4.0.0",
+ "resolved": "https://registry.npmjs.org/multipipe/-/multipipe-4.0.0.tgz",
+ "integrity": "sha512-jzcEAzFXoWwWwUbvHCNPwBlTz3WCWe/jPcXSmTfbo/VjRwRTfvLZ/bdvtiTdqCe8d4otCSsPCbhGYcX+eggpKQ==",
+ "dev": true,
+ "requires": {
+ "duplexer2": "^0.1.2",
+ "object-assign": "^4.1.0"
+ }
+ },
+ "object-assign": {
+ "version": "4.1.1",
+ "resolved": "https://registry.npmjs.org/object-assign/-/object-assign-4.1.1.tgz",
+ "integrity": "sha512-rJgTQnkUnH1sFw8yT6VSU3zD3sWmu6sZhIseY8VX+GRu3P6F7Fu+JNDoXfklElbLJSnc3FUQHVe4cU5hj+BcUg==",
+ "dev": true
+ },
+ "process-nextick-args": {
+ "version": "2.0.1",
+ "resolved": "https://registry.npmjs.org/process-nextick-args/-/process-nextick-args-2.0.1.tgz",
+ "integrity": "sha512-3ouUOpQhtgrbOa17J7+uxOTpITYWaGP7/AhoR3+A+/1e9skrzelGi/dXzEYyvbxubEF6Wn2ypscTKiKJFFn1ag==",
+ "dev": true
+ },
+ "readable-stream": {
+ "version": "3.6.0",
+ "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.6.0.tgz",
+ "integrity": "sha512-BViHy7LKeTz4oNnkcLJ+lVSL6vpiFeX6/d3oSH8zCW7UxP2onchk+vTGB143xuFjHS3deTgkKoXXymXqymiIdA==",
+ "requires": {
+ "inherits": "^2.0.3",
+ "string_decoder": "^1.1.1",
+ "util-deprecate": "^1.0.1"
+ }
+ },
+ "safe-buffer": {
+ "version": "5.2.1",
+ "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
+ "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ=="
+ },
+ "string_decoder": {
+ "version": "1.3.0",
+ "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.3.0.tgz",
+ "integrity": "sha512-hkRX8U1WjJFd8LsDJ2yQ/wWWxaopEsABU1XfkM8A+j0+85JAGppt16cr1Whg6KIbb4okU6Mql6BOj+uup/wKeA==",
+ "requires": {
+ "safe-buffer": "~5.2.0"
+ }
+ },
+ "through2": {
+ "version": "4.0.2",
+ "resolved": "https://registry.npmjs.org/through2/-/through2-4.0.2.tgz",
+ "integrity": "sha512-iOqSav00cVxEEICeD7TjLB1sueEL+81Wpzp2bY17uZjZN0pWZPuo4suZ/61VujxmqSGFfgOcNuTZ85QJwNZQpw==",
+ "requires": {
+ "readable-stream": "3"
+ }
+ },
+ "util-deprecate": {
+ "version": "1.0.2",
+ "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
+ "integrity": "sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw=="
+ }
+ }
+}
diff --git a/2022/package.json b/2022/package.json
@@ -0,0 +1,19 @@
+{
+ "name": "2022",
+ "version": "1.0.0",
+ "description": "",
+ "main": "index.js",
+ "scripts": {
+ "test": "echo \"Error: no test specified\" && exit 1"
+ },
+ "keywords": [],
+ "author": "",
+ "license": "MIT",
+ "dependencies": {
+ "through2": "^4.0.2"
+ },
+ "devDependencies": {
+ "@types/node": "^18.11.10",
+ "multipipe": "^4.0.0"
+ }
+}
