add notebook (in progress)

intro_to_cpp_test.ipynb

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+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "e3aca7ad",
+   "metadata": {},
+   "source": [
+    "# Introduction to C++\n",
+    "\n",
+    "Swiss Olympiad in Informatics 2023\n",
+    "\n",
+    "(Source of text: Luc Haller, SOI Frauenworkshop 2018)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "4e8afaf1",
+   "metadata": {},
+   "source": [
+    "## Variables"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "c9c2fa05",
+   "metadata": {},
+   "source": [
+    "Variables have a type, a name and a value, which can be modified.\n",
+    "\n",
+    "`<type> <name> = <value>;` (don't forget the `;`)\n",
+    "\n",
+    "Example: declaring a variable of *type int* with *name n* and setting its *value to 0*:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "id": "9b816d4b",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "int n = 0;"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "1f85ac70",
+   "metadata": {},
+   "source": [
+    "### Some important types:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "id": "db5210e9",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "int i = 42;                        // can store between -2^31 to 2^31-1 (roughly +-2 * 10^9)\n",
+    "long long ll = 12345678987654321;  // can store between -2^63 to 2^63-1 (roughly +-9 * 10^18)\n",
+    "double d = 3.1415;                 // decimal values\n",
+    "char c = 'x';                      // one letter or special sign\n",
+    "char s = '?';\n",
+    "bool b = true;                     // either true or false\n",
+    "bool b2 = false;"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "557fe958",
+   "metadata": {},
+   "source": [
+    "### Arithemtic"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "id": "c4e569d8",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "13"
+      ]
+     },
+     "execution_count": 5,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "int x = 4;\n",
+    "int y = 9;\n",
+    "int z = x + y;\n",
+    "z"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 8,
+   "id": "c50fef16",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "36"
+      ]
+     },
+     "execution_count": 8,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "z = x * y;\n",
+    "z"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 9,
+   "id": "8f1bc6c7",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "9"
+      ]
+     },
+     "execution_count": 9,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "z = y % z;\n",
+    "z"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "93600793",
+   "metadata": {},
+   "source": [
+    "## If ... else"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "ff485b1e",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "C++17",
+   "language": "C++17",
+   "name": "xcpp17"
+  },
+  "language_info": {
+   "codemirror_mode": "text/x-c++src",
+   "file_extension": ".cpp",
+   "mimetype": "text/x-c++src",
+   "name": "c++",
+   "version": "17"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}