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