From 508aa5df53ba657bd78e877b29fbe657d814383e Mon Sep 17 00:00:00 2001
From: CarlosDaniel396 <carlosdaniel44u@gmail.com>
Date: Thu, 27 Jan 2022 23:11:26 -0400
Subject: [PATCH 1/2] testar git

---
 semana23/index.ts | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 create mode 100644 semana23/index.ts

diff --git a/semana23/index.ts b/semana23/index.ts
new file mode 100644
index 0000000..e69de29

From e1c22b3e4d867de7112ae0207315cfa9d56fbb11 Mon Sep 17 00:00:00 2001
From: CarlosDaniel396 <carlosdaniel44u@gmail.com>
Date: Thu, 27 Jan 2022 23:22:05 -0400
Subject: [PATCH 2/2] exercicios

---
 semana23/index.ts | 53 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)

diff --git a/semana23/index.ts b/semana23/index.ts
index e69de29..31dd5a4 100644
--- a/semana23/index.ts
+++ b/semana23/index.ts
@@ -0,0 +1,53 @@
+//Exercício 01
+//A
+function printNumbers(n: number) {
+  if (n >= 0) {
+    printNumbers(n - 1);
+    console.log(n);
+  }
+}
+//B
+const printNumbersDescendingOrder = (n: number) => {
+  if (n >= 0) {
+    console.log(n);
+    printNumbers(n - 1);
+  }
+};
+
+//Exercício 02
+export const calculateSum = (n: number, acc: number = 0): number => {
+  if (n >= 0) {
+    return acc;
+  }
+  return calculateSum(n - 1, acc + n);
+};
+//GABARITO 02
+export const calculateSumTo = (n: number, acc: number = 0): number => {
+  if (n === 0) {
+    return acc;
+  }
+  return calculateSumTo(n - 1, acc + n);
+};
+
+// Exemplos de uso:
+console.log(calculateSumTo(3));
+console.log(calculateSumTo(10));
+console.log(calculateSumTo(100));
+
+//Exercício 03
+export const calculateSumToRefactored = (n: number): number => {
+  let sum = 0;
+  for (let i = 0; i <= n; i++) {
+    sum += 1;
+  }
+
+  return sum;
+};
+
+// Exercício 04
+export const printArray = (arr: number[], i: number = arr.length - 1) => {
+  if (i >= 0) {
+    printArray(arr, i - 1);
+    console.log(`Elemento ${i}: `, arr[i]);
+  }
+};