novos exercícios

build.sh

@@ -5,10 +5,16 @@ for f in src/pages/exercises/*; do
 	exercise="${f/src\/pages\/exercises\//}"
 
   if ! [[ "$exercise" =~ ^_.*  ]]; then
-    originPath="src/pages/exercises/${exercise}/_codes"
+    codeOriginPath="src/pages/exercises/${exercise}/_codes"
 
-    if [ -d $originPath ]; then
-      cp -r $originPath "dist/problems/${exercise}/_codes"
+    if [ -d $codeOriginPath ]; then
+      cp -r $codeOriginPath "dist/problems/${exercise}/_codes"
+    fi
+
+    exampleOriginPath="src/pages/exercises/${exercise}/_examples"
+
+    if [ -d $exampleOriginPath ]; then
+      cp -r $exampleOriginPath "dist/problems/${exercise}/_examples"
     fi
   fi
 done

src/pages/exercises/array-fibonacci-sequence/README.md

@@ -1,5 +1,5 @@
 ---
-title: Sequência de Fibonacci
+title: Sequência de Fibonacci (Array)
 subjects:
   - algoritmo
 areas:
@@ -20,10 +20,10 @@ Para analisar mais exemplos veja a _Tabela 1_.
 
 _Tabela 1:_
 
-| Entrada | Saída              |
-| ------- | ------------------ |
-| `0`     |                    |
-| `1`     | `0`                |
-| `2`     | `0, 1`             |
-| `4`     | `0, 1, 1, 2`       |
-| `6`     | `0, 1, 1, 2, 3, 5` |
+| Entrada | Saída                |
+| ------- | -------------------- |
+| `0`     |                      |
+| `1`     | `(0)`                |
+| `2`     | `(0, 1)`             |
+| `4`     | `(0, 1, 1, 2)`       |
+| `6`     | `(0, 1, 1, 2, 3, 5)` |

src/pages/exercises/array-min-withdraw/README.md

@@ -1,5 +1,5 @@
 ---
-title: Saque mínimo
+title: Saque Mínimo
 subjects:
   - algoritmo
 areas:

src/pages/exercises/function-fibonacci-sequence/README.md

@@ -1,5 +1,5 @@
 ---
-title: Sequência de Fibonacci
+title: Sequência de Fibonacci (String)
 subjects:
   - algoritmo
 areas:

src/pages/exercises/object-company/_codes/js/response/index.js

@@ -0,0 +1,39 @@
+const companies = [
+  {
+    name: 'Amazon',
+    founded: 1994,
+    industry: ['E-Commerce', 'Cloud'],
+  },
+  {
+    name: 'Facebook',
+    founded: 2004,
+    industry: ['Social'],
+  },
+  {
+    name: 'Alphabet Inc.',
+    founded: 2015,
+    industry: ['Search', 'Cloud', 'Advertising'],
+  },
+];
+
+companies.sort((a, b) => a.name.localeCompare(b.name));
+
+companies.forEach((company) => {
+  company.kind = 'Internet company';
+});
+
+const MAX_NAME_LENGHT = Math.max(
+  ...companies.map((company) => company.name.length)
+);
+
+function show(companies) {
+  return companies
+    .map(
+      (company) =>
+        company.name.padEnd(MAX_NAME_LENGHT + 3, '.') + company.founded
+    )
+    .join('\n');
+}
+
+// console.table(companies);
+console.log(show(companies));

src/pages/exercises/object-entity/README.mdx

@@ -0,0 +1,27 @@
+---
+title: Objeto HTML Entity
+subjects:
+  - algoritmo
+areas:
+  - objeto
+---
+
+import { Image } from '@astrojs/image/components';
+import objectHtmlEntity from './_assets/object-html-entity.svg';
+
+## Descrição
+
+Estruture a informação desta coleção de Entidades do HTML com algum tipo de dados, usando objeto:
+
+| Char   | Entity   | Decimal  | Hexa     | Description    |
+| ------ | -------- | -------- | -------- | -------------- |
+| &  | `&`  | `&`  | `&` | ampersand      |
+| <   | `<`   | `<`  | `<` | less than      |
+| >   | `>`   | `>`  | `>` | greater than   |
+| © | `©` | `©` | `©` | copyright sign |
+
+Para facilitar o processo, observe este diagrama da _Figura 1_:
+
+_Figura 1 - Objeto Entidade do HTML_
+
+<Image src={objectHtmlEntity} alt="Objeto Entidade do HTML" class="border p-4" />

src/pages/exercises/object-entity/_assets/object-html-entity.pu

@@ -0,0 +1,13 @@
+@startuml
+skinparam classAttributeIconSize 0
+skinparam monochrome true
+hide circle
+
+class Entity {
+  char: String
+  entity: String
+  decimal: String
+  hexa: String
+  description: String
+}
+@enduml

src/pages/exercises/object-entity/_assets/object-html-entity.svg:Zone.Identifier

@@ -0,0 +1,3 @@
+[ZoneTransfer]
+ZoneId=3
+HostUrl=http://www.plantuml.com/plantuml/svg/LOux3W8n34Hxdy97eAPQ2WhgFO7nMiGYSLQE8_4HTmUsGA6SDs-acLgGHoyPsbLj9QU2dAcrGuJhkOUSkDgi3y7Te9HgbPFN8XZU1P8kWgpEMG2sFHujDExu14HEv7kSmzKkdoXRCu15M0lbWIIvqP_Gs7KDhVQZBvZ4bk_pDm00

src/pages/exercises/object-entity/_codes/js/response/array-companies.json

@@ -0,0 +1,30 @@
+[
+  {
+    "char": "&",
+    "entity": "&",
+    "decimal": "&",
+    "hexa": "&",
+    "description": "ampersan"
+  },
+  {
+    "char": "<",
+    "entity": "&lt;",
+    "decimal": "&#60;",
+    "hexa": "&#x3C;",
+    "description": "less than"
+  },
+  {
+    "char": ">",
+    "entity": "&gt;",
+    "decimal": "&#62;",
+    "hexa": "&#x3E;",
+    "description": "greater than"
+  },
+  {
+    "char": "©",
+    "entity": "&copy;",
+    "decimal": "&#169;",
+    "hexa": "&#xA9;",
+    "description": "copyright sign"
+  }
+]

src/pages/exercises/object-entity/_codes/js/response/json-companies.json

@@ -0,0 +1,30 @@
+{
+  "amp": {
+    "char": "&",
+    "entity": "&",
+    "decimal": "&",
+    "hexa": "&",
+    "description": "ampersan"
+  },
+  "lt": {
+    "char": "<",
+    "entity": "&lt;",
+    "decimal": "&#60;",
+    "hexa": "&#x3C;",
+    "description": "less than"
+  },
+  "gt": {
+    "char": ">",
+    "entity": "&gt;",
+    "decimal": "&#62;",
+    "hexa": "&#x3E;",
+    "description": "greater than"
+  },
+  "copy": {
+    "char": "©",
+    "entity": "&copy;",
+    "decimal": "&#169;",
+    "hexa": "&#xA9;",
+    "description": "copyright sign"
+  }
+}

src/pages/exercises/object-exam/README.mdx

@@ -0,0 +1,38 @@
+---
+title: Objeto Exames
+subjects:
+  - algoritmo
+areas:
+  - objeto
+---
+
+import { Image } from '@astrojs/image/components';
+import objectExams from './_assets/object-exams.svg';
+
+## Descrição
+
+Considere que um professor está construindo um sistema de avaliações no qual as questões possuem peso, então dado que foi criado uma avaliação com estas questões:
+
+| Questões | Peso | Resposta |
+| -------- | ---- | -------- |
+| 1        | 2    | a        |
+| 2        | 2    | b        |
+| 3        | 2    | a        |
+| 4        | 2    | c        |
+| 5        | 2    | d        |
+
+Então se um aluno respondeu a prova com as seguintes alternativas o resultado da nota será 4,0.
+
+| Questões | Peso | Resposta | Aluno |
+| -------- | ---- | -------- | ----- |
+| 1        | 2    | a        | a     |
+| 2        | 2    | b        | b     |
+| 3        | 2    | a        | b     |
+| 4        | 2    | c        | b     |
+| 5        | 2    | d        | b     |
+
+Para facilitar a criação deste sistema tente criar a classe `Exams` com esta estrutura:
+
+_Figura 1 - Instância da Empresa_
+
+<Image src={objectExams} alt="Instância da Empresa" class="border p-4" />

src/pages/exercises/object-exam/_assets/object-exams.pu

@@ -0,0 +1,18 @@
+@startuml
+skinparam classAttributeIconSize 0
+skinparam monochrome true
+hide circle
+
+class Exams {
+  -weight: Weight
+  -answer: Answer
+  -exams: Exam
+  +__construct(answer: Answer, weight: Weight)
+  +add(exam: Exam): void
+  +avg(): float
+  +min([count: float]): Array<float>
+  +max([count: float]): Array<float>
+  +lt([limit: float]): Array<float>
+  +gt([limit: float]): Array<float>
+}
+@enduml

src/pages/exercises/object-exam/_codes/js/code/exam-check.js

@@ -0,0 +1,5 @@
+class ExamCheck {
+  // TODO
+}
+
+export { ExamCheck };

src/pages/exercises/object-exam/_codes/js/code/exam-stats.js

@@ -0,0 +1,5 @@
+class ExamStats {
+  // TODO
+}
+
+export { ExamStats };

src/pages/exercises/object-exam/_codes/js/code/exam.print.js

@@ -0,0 +1,47 @@
+import { ExamCheck } from "./exam-check.js";
+import { ExamStats } from "./exam-stats.js";
+
+// Exam Tool
+
+// calculating grade by weighted average
+let weight = { q1: 2, q2: 2, q3: 2, q4: 2, q5: 2 };
+let answer = { q1: "a", q2: "b", q3: "a", q4: "c", q5: "d" };
+let examCheck = new ExamCheck(answer, weight);
+
+let student = { q1: "a", q2: "b", q3: "b", q4: "b", q5: "b" };
+console.log(examCheck.grade(student));
+console.log(4);
+
+// calculating grade by weighted average
+weight = { q1: 2, q2: 2, q3: 2, q4: 2, q5: 2 };
+answer = { q1: "a", q2: "b", q3: "a", q4: "c", q5: "d" };
+examCheck = new ExamCheck(answer, weight);
+
+student = { q1: "c", q2: "b", q3: "a", q4: "c", q5: "d" };
+console.log(examCheck.grade(student));
+console.log(8);
+
+// calculating exam values
+let examStats = new ExamStats([
+  { student: "Fulano", grade: 10 },
+  { student: "Sicrano", grade: 5 },
+  { student: "Beltrano", grade: 7 }
+]);
+
+console.log(examStats.avg());
+console.log(7.333333333333333);
+
+console.log(examStats.min());
+console.log([5]);
+
+console.log(examStats.min(2));
+console.log([5, 7]);
+
+console.log(examStats.max());
+console.log([10]);
+
+console.log(examStats.lt(6));
+console.log([5]);
+
+console.log(examStats.gt(6));
+console.log([7, 10]);