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Merge pull request pyvec#26 from frenzymadness/feedback
Ostrava: Feedback
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‎lessons/feedback/ostrava3/index.ipynb‎

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{
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"cells": [
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{
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"cell_type": "markdown",
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"metadata": {
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"slideshow": {
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"slide_type": "slide"
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}
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},
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"source": [
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"# Feedback k domácím projektům"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {
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"slideshow": {
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"slide_type": "slide"
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}
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},
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"source": [
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"## Nejmenší číslo"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {
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"slideshow": {
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"slide_type": "fragment"
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}
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},
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"source": [
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"### Upovídané řešení z domácích projektů"
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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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"metadata": {
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"slideshow": {
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"slide_type": "-"
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}
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},
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"outputs": [],
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"source": [
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"prve = input('Zadej cislo: ')\n",
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"druhe = input('Zadej cislo: ')\n",
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"tretie = input('Zadej cislo: ')\n",
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"stvrte = input('Zadej cislo: ')\n",
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"piate = input('Zadej cislo: ')\n",
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"\n",
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"if prve<druhe and prve<tretie and prve<stvrte and prve<piate: \n",
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" print(prve) \n",
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"if druhe<prve and druhe<tretie and druhe<stvrte and druhe<piate: \n",
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" print(druhe) \n",
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"if tretie<prve and tretie<druhe and tretie<stvrte and tretie<piate: \n",
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" print(tretie) \n",
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"if stvrte<prve and stvrte<druhe and stvrte<tretie and stvrte<piate: \n",
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" print(stvrte) \n",
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"if piate<prve and piate<druhe and piate<tretie and piate<stvrte: \n",
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" print(piate)"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {
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"slideshow": {
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"slide_type": "slide"
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}
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},
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"source": [
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"### Lepší, ale pořád ne optimální"
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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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"metadata": {
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"slideshow": {
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"slide_type": "-"
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}
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},
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"outputs": [],
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"source": [
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"a = float(input('Prvni cislo: '))\n",
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"b = float(input('Druhe cislo: '))\n",
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"c = float(input('Treti cislo: '))\n",
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"d = float(input('Ctrvte cislo: '))\n",
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"e = float(input('Pate cislo: '))\n",
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"\n",
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"\n",
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"m = a\n",
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"\n",
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"for cislo in a, b, c, d, e:\n",
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" if cislo < m:\n",
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" m=cislo\n",
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"print(m)"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {
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"slideshow": {
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"slide_type": "slide"
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}
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},
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"source": [
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"### Kratší a méně náročné řešení"
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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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"metadata": {
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"slideshow": {
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"slide_type": "-"
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}
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},
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"outputs": [],
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"source": [
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"minimum = 0\n",
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"for x in range(5):\n",
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" cislo = int(input('Zadej cislo: '))\n",
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" \n",
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" if minimum == 0 or cislo < minimum:\n",
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" minimum = cislo\n",
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"\n",
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"print('Nejmensi zadane cislo je', minimum)"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {
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"slideshow": {
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"slide_type": "slide"
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}
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},
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"source": [
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"## N-úhelníky v řadě"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {
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"slideshow": {
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"slide_type": "slide"
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}
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},
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"source": [
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"### Upovídané řešení z domácích projektů"
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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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"metadata": {
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"slideshow": {
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"slide_type": "-"
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}
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},
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"outputs": [],
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"source": [
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"from turtle import forward, shape, left, right, exitonclick, penup, pendown, back\n",
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"\n",
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"# pětiúhelník:\n",
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"vnitrniuhel = 180*(1-(2/5))\n",
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"vnejsiuhel= 180-vnitrniuhel\n",
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"for x in range (5):\n",
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" forward(200/5)\n",
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" left(vnejsiuhel)\n",
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"penup()\n",
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"forward(100)\n",
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"pendown()\n",
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"\n",
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"# šestiúhelník:\n",
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"vnitrniuhel = 180*(1-(2/6))\n",
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"vnejsiuhel= 180-vnitrniuhel\n",
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"for x in range (6):\n",
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" forward(200/6)\n",
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" left(vnejsiuhel)\n",
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"penup()\n",
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"forward(100)\n",
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"pendown()\n",
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"\n",
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"# sedmiúhelník:\n",
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"vnitrniuhel = 180*(1-(2/7))\n",
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"vnejsiuhel= 180-vnitrniuhel\n",
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"for x in range (7):\n",
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" forward(200/7)\n",
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" left(vnejsiuhel)\n",
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"penup()\n",
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"forward(100)\n",
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"pendown()\n",
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"\n",
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"# osmiúhelník:\n",
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"vnitrniuhel = 180*(1-(2/8))\n",
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"vnejsiuhel= 180-vnitrniuhel\n",
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"for x in range (8):\n",
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" forward(200/8)\n",
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" left(vnejsiuhel)\n",
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"exitonclick()"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {
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"slideshow": {
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"slide_type": "slide"
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}
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},
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"source": [
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"### Kratší řešení s využitím cyklu v dalším cyklu"
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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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"metadata": {
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"slideshow": {
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"slide_type": "-"
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}
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},
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"outputs": [],
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"source": [
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"from turtle import forward, shape, left, right, exitonclick, penup, pendown, back\n",
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"\n",
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"for n in range(5,9):\n",
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" vnitrniuhel = 180*(1-(2/n))\n",
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" vnejsiuhel= 180-vnitrniuhel\n",
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" for x in range (n):\n",
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" forward(200/n)\n",
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" left(vnejsiuhel)\n",
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" penup()\n",
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" forward(100)\n",
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" pendown()\n",
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"\n",
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"exitonclick()"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {
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"slideshow": {
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"slide_type": "slide"
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}
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},
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"source": [
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"## Obecné připomínky a rady"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {
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"slideshow": {
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"slide_type": "-"
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}
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},
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"source": [
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"* K importům:\n",
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" * Importy provádíme vždy na prvních řádcích programu a v rámci programu pouze jednou.\n",
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" * Snažíme se nepoužívat importy s hvězdičkou.\n",
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" * Neimportujeme nic co pak v programu nepoužijeme.\n",
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"* Ke komentářům:\n",
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" * Nezakomentováváme programy nebo jednotlivé úlohy v nich.\n",
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" * Není třeba psát komentáře k tomu, co je zcela jasné. Je to ale pořád lepší než je nepsat vůbec.\n",
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" * Komentáře je lepší a jednodušší psát nad nebo pod kód místo vedle něj. Obzvlášť pokud má komentovaná část kódu několik řádků.\n",
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"* Ke stylu:\n",
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" * Zkuste nedělat extra dlouhé řádky. Maximum je takových 100 znaků.\n",
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" * Kód nemusí být elegantní, hlavně když funguje (alespoň pro začátek).\n",
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"* Martin děkuje všem, kteří zrychlili želvičku."
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]
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}
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],
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"metadata": {
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"celltoolbar": "Slideshow",
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"kernelspec": {
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"display_name": "Python 3",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"codemirror_mode": {
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"name": "ipython",
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"version": 3
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},
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"file_extension": ".py",
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"mimetype": "text/x-python",
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"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython3",
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"version": "3.7.2"
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}
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},
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"nbformat": 4,
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"nbformat_minor": 2
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}

‎lessons/feedback/ostrava3/info.yml‎

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title: Zpětná vazba k domácím projektům
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style: ipynb
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attribution: Pro PyLadies Ostrava napsal Lumír Balhar, 2019.
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license: cc-by-sa-40

‎runs/2019/pyladies-ostrava-jaro/info.yml‎

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- title: Odevzdání domácích projektů
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type: link
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url: https://www.dropbox.com/request/1C7qR4cK9s0gfEHP2rDI
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- lesson: feedback/ostrava3
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type: lesson
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- title: Jeden nový cyklus a procvičování
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slug: while
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date: 2019-02-26

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