diff --git a/.idea/Serverless-Training.iml b/.idea/Serverless-Training.iml
new file mode 100644
index 0000000..d6ebd48
--- /dev/null
+++ b/.idea/Serverless-Training.iml
@@ -0,0 +1,9 @@
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 0000000..5a210c3
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,22 @@
+
+
+
+
+
+
+
+
+
+ 1.8
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 0000000..f821e27
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,8 @@
+
+
+
+
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+
+
+
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..35eb1dd
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/workspace.xml b/.idea/workspace.xml
new file mode 100644
index 0000000..41e6031
--- /dev/null
+++ b/.idea/workspace.xml
@@ -0,0 +1,859 @@
+
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+ true
+ DEFINITION_ORDER
+
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+ project
+
+
+ true
+
+
+
+ DIRECTORY
+
+ false
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+ 1559591495642
+
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+ 1559591495642
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\ No newline at end of file
diff --git a/Retos/sesion3-reto1/sesion3-reto1-RaulRondon/Album.js b/Retos/sesion3-reto1/sesion3-reto1-RaulRondon/Album.js
new file mode 100644
index 0000000..bb43d2b
--- /dev/null
+++ b/Retos/sesion3-reto1/sesion3-reto1-RaulRondon/Album.js
@@ -0,0 +1,41 @@
+const Song = require ("./Song");
+
+module.exports = class Album {
+ getNumberOfLikes(){
+ let number = 0;
+ for (let s in this.song)
+ {
+ number+=this.song[s].like_number;
+ }
+
+ return number;
+ }
+ addSong(song){
+ this.song.push(song);
+ this.like_number = this.getNumberOfLikes();
+ }
+ deleteSong(song){
+ let index = this.song.indexOf(song);
+ this.song.splice(index,1);
+ this.like_number = this.getNumberOfLikes();
+ }
+ addAuthor(author){
+ this.author.push(author);
+ }
+ deleteAuthor(author){
+ let index = this.song.indexOf(author);
+ this.author.splice(index,1);
+ }
+ constructor({name, author,time, genre, dislike_number, image, upload_date, song}) {
+ this.name = name;
+ this.author = Array.from(author);
+ this.time = time;
+ this.genre = genre;
+ this.song = Array.from(song);
+ this.like_number = this.getNumberOfLikes();
+ this.dislike_number = dislike_number;
+ this.image = image;
+ this.upload_date = upload_date;
+
+ }
+};
diff --git a/Retos/sesion3-reto1/sesion3-reto1-RaulRondon/Author.js b/Retos/sesion3-reto1/sesion3-reto1-RaulRondon/Author.js
new file mode 100644
index 0000000..d46a224
--- /dev/null
+++ b/Retos/sesion3-reto1/sesion3-reto1-RaulRondon/Author.js
@@ -0,0 +1,9 @@
+module.exports = class Author {
+ constructor({name, country, biography, listeners, followers}) {
+ this.name = name;
+ this.country = country;
+ this.biography = biography;
+ this.listeners = listeners;
+ this.followers = followers;
+ }
+};
diff --git a/Retos/sesion3-reto1/sesion3-reto1-RaulRondon/Song.js b/Retos/sesion3-reto1/sesion3-reto1-RaulRondon/Song.js
new file mode 100644
index 0000000..e0f1c11
--- /dev/null
+++ b/Retos/sesion3-reto1/sesion3-reto1-RaulRondon/Song.js
@@ -0,0 +1,12 @@
+module.exports = class Song {
+ constructor({title, album, time, genre, like_number, dislike_number, image, upload_date}) {
+ this.title = title;
+ this.album = album;
+ this.time = time;
+ this.genre = genre;
+ this.like_number = like_number;
+ this.dislike_number = dislike_number;
+ this.image = image;
+ this.upload_date = upload_date;
+ }
+};
diff --git a/Retos/sesion3-reto1/sesion3-reto1-RaulRondon/Spotify.js b/Retos/sesion3-reto1/sesion3-reto1-RaulRondon/Spotify.js
new file mode 100644
index 0000000..a2426a2
--- /dev/null
+++ b/Retos/sesion3-reto1/sesion3-reto1-RaulRondon/Spotify.js
@@ -0,0 +1,31 @@
+module.exports = class Spotify {
+ constructor(album, user) {
+ this.album = Array.from(album);
+ this.user = Array.from(user);
+ }
+ addAlbum(newAlbum) {
+ if(this.album.indexOf(newAlbum) === -1)
+ this.album.push(newAlbum);
+ }
+ getAlbum(albumName) {
+ return this.album.find(element => element.name === albumName) || null;
+ }
+ deleteAlbum(albumName) {
+ let album = this.getAlbum(albumName);
+ if(album!==null)
+ this.album.splice(this.album.indexOf(album),1);
+ }
+ addUser(newUser) {
+ let exist = this.user.find(elemento=>elemento.username === newUser.username);
+ if(!exist)
+ this.user.push(newUser);
+ }
+ getUser(username) {
+ return this.user.find(element => element.username === username) || null;
+ }
+ deleteUser(username) {
+ let user = this.getUser(username);
+ if(user!==null)
+ this.user.splice(this.user.indexOf(user),1);
+ }
+};
diff --git a/Retos/sesion3-reto1/sesion3-reto1-RaulRondon/User.js b/Retos/sesion3-reto1/sesion3-reto1-RaulRondon/User.js
new file mode 100644
index 0000000..2cefd5b
--- /dev/null
+++ b/Retos/sesion3-reto1/sesion3-reto1-RaulRondon/User.js
@@ -0,0 +1,9 @@
+module.exports = class User {
+ constructor(username,password,email,name,premium) {
+ this.username = username;
+ this.password = password;
+ this.email = email;
+ this.name = name;
+ this.premium = premium || false;
+ }
+};
diff --git a/Retos/sesion3-reto1/sesion3-reto1-RaulRondon/index.js b/Retos/sesion3-reto1/sesion3-reto1-RaulRondon/index.js
new file mode 100644
index 0000000..5c4521d
--- /dev/null
+++ b/Retos/sesion3-reto1/sesion3-reto1-RaulRondon/index.js
@@ -0,0 +1,88 @@
+const objectFactory = require("./objectFactory");
+const User = require("./User");
+const Spotify = require("./Spotify");
+
+const author = objectFactory.createObject("Author", {
+ name: "Raul Rondon",
+ country: "Peru",
+ biography: "Peruano de nacimiento",
+ listeners: 100,
+ followers: 100
+});
+
+const author2 = objectFactory.createObject("Author", {
+ name: "Juan Perez",
+ country: "Peru",
+ biography: "Peruano de nacimiento",
+ listeners: 12,
+ followers: 12
+});
+
+const song = objectFactory.createObject("Song", {
+ title: "Rock yourself",
+ album: "Peruana",
+ time: 100,
+ genre: "Rock",
+ like_number: 1000,
+ dislike_number: 10,
+ image: "http://url.com",
+ upload_date: "2019-05-05",
+ country: "Peru",
+ biography: "Peruano de nacimiento",
+ listeners: 100,
+ followers: 100
+});
+
+const song2 = objectFactory.createObject("Song", {
+ title: "Rock yourselfs",
+ album: "Peruanas",
+ time: 100,
+ genre: "Rock",
+ like_number: 100,
+ dislike_number: 10,
+ image: "http://url.com",
+ upload_date: "2019-05-05",
+ country: "Peru",
+ biography: "Peruano de nacimiento",
+ listeners: 100,
+ followers: 100
+});
+
+const album = objectFactory.createObject("Album", {
+ name: "Tu mano",
+ author: [author],
+ time: 100,
+ genre: "Rock",
+ like_number: 1000,
+ dislike_number: 100,
+ image: "https://image.com",
+ upload_date: '2019-05-05',
+ song: [song]
+});
+
+const album3 = objectFactory.createObject("Album", {
+ name: "Como mirarte",
+ author: [author],
+ genre: "Salsa",
+ image: "https://image.com",
+ upload_date: '2019-05-05',
+ song: [song]
+});
+
+const user = new User("rrondon","1234","rrondon@gmail.com","Raul Rondon Ponce");
+const user_premium = new User("jperez","1234","jperez@gmail.com","Juan Perez");
+
+const spotify = new Spotify([album],[user,user_premium]);
+//let album1 = spotify.getAlbum("Como mirarte");
+
+spotify.addAlbum(album);
+spotify.addAlbum(album3);
+spotify.addUser(user_premium);
+
+
+console.log(spotify);
+
+spotify.deleteAlbum(album.name);
+spotify.deleteUser(user_premium.username);
+spotify.deleteUser(user.username);
+console.log(spotify);
diff --git a/Retos/sesion3-reto1/sesion3-reto1-RaulRondon/objectFactory.js b/Retos/sesion3-reto1/sesion3-reto1-RaulRondon/objectFactory.js
new file mode 100644
index 0000000..5748e71
--- /dev/null
+++ b/Retos/sesion3-reto1/sesion3-reto1-RaulRondon/objectFactory.js
@@ -0,0 +1,11 @@
+const Author = require ("./Author");
+const Album = require ("./Album");
+const Song = require ("./Song");
+const object = {Author,Album,Song}
+
+module.exports = {
+ createObject(type, attributes) {
+ const objectType = object[type];
+ return new objectType(attributes);
+ }
+};
diff --git a/reto1.js b/reto1.js
new file mode 100644
index 0000000..4a8a59b
--- /dev/null
+++ b/reto1.js
@@ -0,0 +1,26 @@
+const numbers = [2,5,4,6,10,4,0,-8,8,16];
+let numbers_size = numbers.length;
+let hashmap = {};
+let answer = [];
+const n = 8;
+
+function recursionOn(tam) {
+
+ let target = n - numbers[tam-1];
+
+ if (tam<=0)
+ return answer;
+
+ if(!hashmap[target])
+ {
+ hashmap[numbers[tam-1]] = 1;
+ }
+
+ else{
+ let array = [numbers[tam-1],target];
+ answer.push(array);
+ }
+ return (recursionOn(tam-1))
+}
+
+console.log(recursionOn(numbers_size));