From 372f4dbaad823dc7f7650bde3b845950673c689c Mon Sep 17 00:00:00 2001
From: Luiz Ricardo da Silva <luiz.dug@gmail.com>
Date: Thu, 3 Feb 2022 19:01:06 -0300
Subject: [PATCH] =?UTF-8?q?Exerc=C3=ADcio=20do=20Dia=20-=20Checa=20Par?=
 =?UTF-8?q?=C3=AAnteses=20V=C3=A1lidos?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../exercise-day-3/checkParenthesis.js        | 28 +++++++++++++++++++
 .../exercise-day-3/checkParenthesis.test.ts   |  0
 .../exercise-day-3/checkParenthesis.ts        | 28 +++++++++++++++++++
 logic-exercises/exercise-day-3/package.json   | 13 +++++++++
 4 files changed, 69 insertions(+)
 create mode 100644 logic-exercises/exercise-day-3/checkParenthesis.js
 create mode 100644 logic-exercises/exercise-day-3/checkParenthesis.test.ts
 create mode 100644 logic-exercises/exercise-day-3/checkParenthesis.ts
 create mode 100644 logic-exercises/exercise-day-3/package.json

diff --git a/logic-exercises/exercise-day-3/checkParenthesis.js b/logic-exercises/exercise-day-3/checkParenthesis.js
new file mode 100644
index 0000000..e7b1056
--- /dev/null
+++ b/logic-exercises/exercise-day-3/checkParenthesis.js
@@ -0,0 +1,28 @@
+function checkParenthesis(str) {
+    var stack = [];
+    for (var _i = 0, str_1 = str; _i < str_1.length; _i++) {
+        var char = str_1[_i];
+        if (char === "(" || char === "[" || char === "{") {
+            stack.push(char);
+        }
+        else {
+            var lastOpeningChar = stack.pop();
+            if (!lastOpeningChar) {
+                return false;
+            }
+            else if ((lastOpeningChar === "(" && char !== ")") ||
+                (lastOpeningChar === "[" && char !== "]") ||
+                (lastOpeningChar === "{" && char !== "}")) {
+                return false;
+            }
+        }
+    }
+    if (stack.length > 0) {
+        return false;
+    }
+    return true;
+}
+console.log(checkParenthesis("()"));
+console.log(checkParenthesis("(]"));
+console.log(checkParenthesis("({})"));
+console.log(checkParenthesis("([})"));
diff --git a/logic-exercises/exercise-day-3/checkParenthesis.test.ts b/logic-exercises/exercise-day-3/checkParenthesis.test.ts
new file mode 100644
index 0000000..e69de29
diff --git a/logic-exercises/exercise-day-3/checkParenthesis.ts b/logic-exercises/exercise-day-3/checkParenthesis.ts
new file mode 100644
index 0000000..7c0f908
--- /dev/null
+++ b/logic-exercises/exercise-day-3/checkParenthesis.ts
@@ -0,0 +1,28 @@
+function checkParenthesis(str) {
+    const stack = []
+    for (let char of str) {
+        if (char === "(" || char === "[" || char === "{") {
+            stack.push(char)
+        } else {
+            const lastOpeningChar = stack.pop()
+            if(!lastOpeningChar) {
+                return false
+            } else if (
+                (lastOpeningChar === "(" && char !== ")") ||
+                (lastOpeningChar === "[" && char !== "]") ||
+                (lastOpeningChar === "{" && char !== "}")
+            ) {
+                return false
+            }
+        }
+    }
+    if (stack.length > 0) {
+        return false
+    }
+    return true
+}
+
+console.log(checkParenthesis("()"))
+console.log(checkParenthesis("(]"))
+console.log(checkParenthesis("({})"))
+console.log(checkParenthesis("([})"))
\ No newline at end of file
diff --git a/logic-exercises/exercise-day-3/package.json b/logic-exercises/exercise-day-3/package.json
new file mode 100644
index 0000000..5c04ade
--- /dev/null
+++ b/logic-exercises/exercise-day-3/package.json
@@ -0,0 +1,13 @@
+{
+  "name": "exercise-day-3",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "start":"clear && tsc --outFile checkParenthesis.js checkParenthesis.ts && node checkParenthesis.js",
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC"
+}
\ No newline at end of file