Add course notebooks to repo

.gitignore

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+/Bootcamp
+.ipynb_checkpoints

Abubakr_py_exercise7.ipynb

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+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Balanced Parentheses Check \n",
+    "\n",
+    "## Problem Statement\n",
+    "\n",
+    "Given a string of opening and closing parentheses, check whether it’s balanced. We have 3 types of parentheses: round brackets: (), square brackets: [], and curly brackets: {}. Assume that the string doesn’t contain any other character than these, no spaces words or numbers. As a reminder, balanced parentheses require every opening parenthesis to be closed in the reverse order opened. For example ‘([])’ is balanced but ‘([)]’ is not. \n",
+    "\n",
+    "\n",
+    "You can assume the input string has no spaces.\n",
+    "\n",
+    "## Solution\n",
+    "\n",
+    "Fill out your solution below:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 35,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def balance_check(s):\n",
+    "    if len(s)%2!=0:\n",
+    "        return False\n",
+    "    \n",
+    "    # mapping closing and openning Parentheses of the same type\n",
+    "    dic = {\"{\":\"}\",\"[\":\"]\",\"(\":\")\"}\n",
+    "    \n",
+    "    open_ = dic.keys()\n",
+    "    close = dic.values()\n",
+    "    \n",
+    "    stack = list()  # Create an Empty stack (we can treat a list as a stack)\n",
+    "    \n",
+    "    # The idea is to loop through the string and see if\n",
+    "    # 1- each parentheses is opened and closed and opened before it's closed\n",
+    "    # 2- each inner parentheses closes before an outer one does\n",
+    "    # This can be done by having a stack that keeps a reverse order of \n",
+    "    # the opened parentheses, and checks each time a parentheses is closed \n",
+    "    # if it's the last one that have been opened\n",
+    "    \n",
+    "    for i in s: \n",
+    "        if i in open_:\n",
+    "            stack.append(i)\n",
+    "        elif i in close:\n",
+    "            if dic[stack[-1]]==i:\n",
+    "                stack.pop()\n",
+    "            else:\n",
+    "                return False\n",
+    "    return True"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 36,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "True"
+      ]
+     },
+     "execution_count": 36,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "balance_check('[]')"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 25,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "True"
+      ]
+     },
+     "execution_count": 25,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "balance_check('[](){([[[]]])}')"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 26,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "False"
+      ]
+     },
+     "execution_count": 26,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "balance_check('()(){]}')"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Test Your Solution"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 27,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "ALL TEST CASES PASSED\n"
+     ]
+    }
+   ],
+   "source": [
+    "\"\"\"\n",
+    "RUN THIS CELL TO TEST YOUR SOLUTION\n",
+    "\"\"\"\n",
+    "from nose.tools import assert_equal\n",
+    "\n",
+    "class TestBalanceCheck(object):\n",
+    "    \n",
+    "    def test(self,sol):\n",
+    "        assert_equal(sol('[](){([[[]]])}('),False)\n",
+    "        assert_equal(sol('[{{{(())}}}]((()))'),True)\n",
+    "        assert_equal(sol('[[[]])]'),False)\n",
+    "        print('ALL TEST CASES PASSED')\n",
+    "        \n",
+    "# Run Tests\n",
+    "\n",
+    "t = TestBalanceCheck()\n",
+    "t.test(balance_check)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Good Job!"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.7.3"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 4
+}