add 2021

2021/01/first.go

@@ -0,0 +1,21 @@
+package main
+
+import (
+	"fmt"
+	"os"
+)
+
+func checkErr(e error) {
+	if e!=nil{
+		panic(e)
+	}
+}
+func main(){
+	numbers := getNumbers("numbers")
+
+}
+func getNumbers(filename string)[]byte{
+	dat, err := os.ReadFile(filename)
+	checkErr(err)
+	return dat
+}

2021/01/first.js

@@ -0,0 +1,8 @@
+import fs from 'fs'
+let input = fs.readFileSync('numbers',{encoding:"utf8"}).split('\n')
+let result = 0
+for (let i = 1; i < input.length; i++) {
+    if (Number(input[i]) >= Number(input[i - 1]))
+        result++
+}
+console.log(result)

2021/01/package.json

@@ -0,0 +1,11 @@
+{
+  "name": "01",
+  "version": "1.0.0",
+  "main": "index.js",
+  "license": "MIT",
+	"type":"module",
+	"scripts": {
+		"first": "node first.js",
+		"second": "node second.js"
+	}
+}

2021/01/second.js

@@ -0,0 +1,11 @@
+import fs from 'fs'
+let input = fs.readFileSync('numbers',{encoding:"utf8"}).split('\n').map(x=>Number(x))
+
+let result = 0
+let sums = []
+for (let i = 0; i < input.length; i++) {
+        sums.push(input[i] + input[i + 1] + input[i + 2])
+        if (sums[sums.length-1] > sums[sums.length - 2])
+            result++
+}
+console.log(result)