IGCSE, A-Level & AP · ⁨IGCSE、A-Level & AP⁩ IGCSE, A-Level & AP Sheet preview · ⁨シートプレビュー⁩

← Learn to Code — Python, Java, C, SQL & Web · ⁨プログラミング学習 — Python, Java, C, SQL & Web⁩

Python Practice · ⁨Python練習⁩

Coding challenges from 1★ to 5★. · ⁨1★から5★までのコーディングチャレンジ。⁩

python 108 Lessons · ⁨レッスン⁩

Every lesson runs in your browser — write real code, press Run, and the tasks check themselves. Free, no account needed, with translated notes paired with English. · ⁨全レッスンはブラウザ内で実行され、実際のコードを記述し、「実行」ボタンを押すだけでタスクが自己確認を行う。無料であり、アカウント不要。翻訳付きメモが英語とペアになっている。⁩

Start the course · ⁨コース開始⁩

Lessons in this course · ⁨このコースのレッスン⁩

  1. 01 Print a word · ⁨単語を表示する⁩ 1 required task · ★
  2. 02 Print another word · ⁨別の単語を表示する⁩ 1 required task · ★
  3. 03 Print a sentence · ⁨文を表示する⁩ 1 required task · ★
  4. 04 Print with a ! · ⁨！付きで表示する⁩ 1 required task · ★
  5. 05 Print two lines · ⁨2行表示する⁩ 1 required task · ★
  6. 06 Print three lines · ⁨3行表示する⁩ 1 required task · ★
  7. 07 Print a number · ⁨数字を表示する⁩ 1 required task · ★
  8. 08 Print a bigger number · ⁨大きな数字を出力⁩ 1 required task · ★
  9. 09 Add two numbers · ⁨2つの数字を加算する⁩ 1 required task · ★
    Builds on: Python Basics · Numbers & operators · ⁨数と演算子⁩
  10. 10 Add bigger numbers · ⁨大きな数字を加算⁩ 1 required task · ★
    Builds on: Python Basics · Numbers & operators · ⁨数と演算子⁩
  11. 11 Subtract · ⁨引き算⁩ 1 required task · ★
    Builds on: Python Basics · Numbers & operators · ⁨数と演算子⁩
  12. 12 Multiply · ⁨掛け算⁩ 1 required task · ★
    Builds on: Python Basics · Numbers & operators · ⁨数と演算子⁩
  13. 13 Divide · ⁨割り算⁩ 1 required task · ★
    Builds on: Python Basics · Numbers & operators · ⁨数と演算子⁩
  14. 14 Remainder 1 required task · ★
    Builds on: Python Basics · Numbers & operators · ⁨数と演算子⁩
  15. 15 Use a variable · ⁨変数を使う⁩ 1 required task · ★
    Builds on: Python Basics · Variables
  16. 16 A number variable · ⁨数字変数⁩ 1 required task · ★
    Builds on: Python Basics · Variables
  17. 17 Change a variable · ⁨変数を更新⁩ 1 required task · ★
    Builds on: Python Basics · Variables
  18. 18 Add two variables · ⁨2つの変数を加算する⁩ 1 required task · ★
    Builds on: Python Basics · Variables
  19. 19 Multiply two variables · ⁨2つの変数を掛け合わせる⁩ 1 required task · ★
    Builds on: Python Basics · Variables
  20. 20 Join two words · ⁨2つの単語をつなぐ⁩ 1 required task · ★
    Builds on: Python Basics · Working with strings · ⁨文字列の操作⁩
  21. 21 Greet a name · ⁨名前へ挨拶⁩ 1 required task · ★
    Builds on: Python Basics · Working with strings · ⁨文字列の操作⁩
  22. 22 Repeat text · ⁨テキストを反復⁩ 1 required task · ★
    Builds on: Python Basics · Working with strings · ⁨文字列の操作⁩
  23. 23 Ask for a name · ⁨名前を質問⁩ 1 required task · ★
    Builds on: Python Basics · Getting input · ⁨入力の取得⁩
  24. 24 Echo a number 1 required task · ★
    Builds on: Python Basics · Getting input · ⁨入力の取得⁩
  25. 105 Call a function · ⁨関数を呼び出す⁩ 1 required task · ★
    Builds on: Python Basics · Functions
  26. 106 Use what it gives back · ⁨戻り値を使う⁩ 1 required task · ★
    Builds on: Python Basics · Functions
  27. 107 Finish the function · ⁨関数を完成させる⁩ 1 required task · ★
    Builds on: Python Basics · Functions
  28. 108 Write one yourself · ⁨自分で書く⁩ 1 required task · ★★
    Builds on: Python Basics · Functions
  29. 25 Your first function · ⁨最初の関数⁩ 1 required task · ★
    Builds on: Python Basics · Functions
  30. 26 Is it positive? 1 required task · ★
    Builds on: Python Basics · Functions
  31. 27 The bigger one · ⁨大きい方⁩ 1 required task · ★
    Builds on: Python Basics · Functions
  32. 28 The last item · ⁨最後の要素⁩ 1 required task · ★
    Builds on: Python Basics · Functions
  33. 29 Is it even? 1 required task · ★
    Builds on: Python Basics · Functions
  34. 30 Sum a list · ⁨リストの合計⁩ 1 required task · ★
    Builds on: Python Basics · Functions
  35. 31 Reverse a string · ⁨文字列を逆にする⁩ 1 required task · ★★
    Builds on: Python Basics · Functions
  36. 32 Count the vowels · ⁨母音の数を数える⁩ 1 required task · ★★
    Builds on: Python Basics · Functions
  37. 33 FizzBuzz 1 required task · ★★★
    Builds on: Python Basics · Functions
  38. 34 Letter frequencies · ⁨文字の頻度⁩ 1 required task · ★★★
    Builds on: Python Basics · Dictionaries (records)
  39. 35 Remove duplicates · ⁨重複を削除⁩ 1 required task · ★★★
    Builds on: Python Basics · Functions
  40. 36 Second largest 1 required task · ★★★
    Builds on: Python Basics · Functions
  41. 37 Group anagrams · ⁨アナグラムをグループ化⁩ 1 required task · ★★★★
    Builds on: Python Basics · Dictionaries (records)
  42. 38 Flatten a nested list · ⁨ネストリストの平坦化⁩ 1 required task · ★★★★
    Builds on: Python Basics · Functions
  43. 39 RPN calculator · ⁨RPN計算機⁩ 1 required task · ★★★★★
    Builds on: Python Basics · Functions
  44. 40 Run-length encoding · ⁨ランルースエンコーディング⁩ 1 required task · ★★★★★
    Builds on: Python Basics · Functions
  45. 41 Count to ten · ⁨10まで数える⁩ 1 required task · ★★
    Builds on: Python Basics · Counting loops · ⁨カウントループ⁩
  46. 42 Even numbers · ⁨偶数のみ⁩ 1 required task · ★★
    Builds on: Python Basics · Counting loops · ⁨カウントループ⁩
  47. 43 Liftoff 1 required task · ★★
    Builds on: Python Basics · While loops
  48. 44 Star triangle · ⁨星の三角形⁩ 1 required task · ★★
    Builds on: Python Basics · Counting loops · ⁨カウントループ⁩
  49. 45 The 3 times table · ⁨3の掛け算表⁩ 1 required task · ★★
    Builds on: Python Basics · Counting loops · ⁨カウントループ⁩
  50. 46 Running total · ⁨累計合計⁩ 1 required task · ★★★
    Builds on: Python Basics · Lists (1-D arrays)
  51. 47 Largest without max · ⁨maxを使わず最大値を求める⁩ 1 required task · ★★★
    Builds on: Python Basics · Functions
  52. 48 Smallest without min · ⁨minを使わず最小値を求める⁩ 1 required task · ★★★
    Builds on: Python Basics · Functions
  53. 49 Count the positives 1 required task · ★★
    Builds on: Python Basics · Functions
  54. 50 Average of a list · ⁨リストの平均⁩ 1 required task · ★★★
    Builds on: Python Basics · Functions
  55. 51 Add up 1 to 100 1 required task · ★★
    Builds on: Python Basics · Counting loops · ⁨カウントループ⁩
  56. 52 Upside-down triangle · ⁨逆三角形⁩ 1 required task · ★★
    Builds on: Python Basics · Counting loops · ⁨カウントループ⁩
  57. 53 FizzBuzz with 4 and 6 · ⁨4と6のFizzBuzz⁩ 1 required task · ★★★
    Builds on: Python Basics · Counting loops · ⁨カウントループ⁩
  58. 54 Until you type stop · ⁨stopを入力するまで⁩ 1 required task · ★★★
    Builds on: Python Basics · While loops
  59. 55 A list of squares · ⁨二乗のリスト⁩ 1 required task · ★★
    Builds on: Python Basics · Lists (1-D arrays)
  60. 56 Count a value 1 required task · ★★
    Builds on: Python Basics · Functions
  61. 57 Keep the evens 1 required task · ★★
    Builds on: Python Basics · Functions
  62. 58 Find the position 1 required task · ★★★
    Builds on: Python Basics · Functions
  63. 59 Smallest and largest 1 required task · ★★★
    Builds on: Python Basics · Functions
  64. 60 Above average 1 required task · ★★★
    Builds on: Python Basics · Functions
  65. 61 Binary to denary 1 required task · ★★★★
    Builds on: Python Basics · Functions
  66. 62 Denary to binary 1 required task · ★★★★
    Builds on: Python Basics · Functions
  67. 63 Digital root 1 required task · ★★★★
    Builds on: Python Basics · Functions
  68. 64 Caesar cipher 1 required task · ★★★★
    Builds on: Python Basics · Functions
  69. 65 Bank account · ⁨銀行口座⁩ 1 required task · ★★★★
    Builds on: Python Basics · Functions
  70. 66 Transpose a grid · ⁨グリッドの転置⁩ 1 required task · ★★★★
    Builds on: Python Basics · Functions
  71. 67 Most common word 1 required task · ★★★★★
    Builds on: Python Basics · Dictionaries (records)
  72. 68 Sieve of Eratosthenes 1 required task · ★★★★★
    Builds on: Python Basics · Functions
  73. 69 A row of Pascal's triangle 1 required task · ★★★★★
    Builds on: Python Basics · Functions
  74. 70 Tic-tac-toe winner · ⁨ tic-tac-toe の勝者判定⁩ 1 required task · ★★★★★
    Builds on: Python Basics · Functions
  75. 71 Is it big? 1 required task · ★
    Builds on: Python Basics · Making decisions
  76. 72 Pass or fail 1 required task · ★
    Builds on: Python Basics · Making decisions
  77. 73 Positive, negative or zero 1 required task · ★
    Builds on: Python Basics · Making decisions
  78. 74 The bigger number · ⁨より大きな数⁩ 1 required task · ★
    Builds on: Python Basics · Making decisions
  79. 75 Even or odd 1 required task · ★
    Builds on: Python Basics · Making decisions
  80. 76 Is it in range? 1 required task · ★★
    Builds on: Python Basics · Making decisions
  81. 77 Free entry · ⁨無料入場⁩ 1 required task · ★★
    Builds on: Python Basics · Making decisions
  82. 78 Grade letter 1 required task · ★★
    Builds on: Python Basics · Making decisions
  83. 79 Divisible by both 1 required task · ★★
    Builds on: Python Basics · Making decisions
  84. 80 Ticket price 1 required task · ★★
    Builds on: Python Basics · Making decisions
  85. 81 Finish the countdown · ⁨カウントダウンを終了する⁩ 1 required task · ★
    Builds on: Python Basics · Counting loops · ⁨カウントループ⁩
  86. 82 The loop that never ends · ⁨永遠に終わらないループ⁩ 1 required task · ★
    Builds on: Python Basics · While loops
  87. 83 Count up to five · ⁨5まで数える⁩ 1 required task · ★
    Builds on: Python Basics · While loops
  88. 84 Add up to five · ⁨5まで足し合わせる⁩ 1 required task · ★
    Builds on: Python Basics · While loops
  89. 85 Double until it passes 100 · ⁨100を超えるまで倍増させる⁩ 1 required task · ★★
    Builds on: Python Basics · While loops
  90. 86 Stop at the first over fifty · ⁨50を超えた瞬間に停止する⁩ 1 required task · ★★
    Builds on: Python Basics · While loops
  91. 87 Count down in twos 1 required task · ★★
    Builds on: Python Basics · While loops
  92. 88 Until they type stop · ⁨stopが入力されるまで⁩ 1 required task · ★★
    Builds on: Python Basics · While loops
  93. 89 How many halvings? · ⁨何回半分に分割したか？⁩ 1 required task · ★★
    Builds on: Python Basics · While loops
  94. 90 A row of the times table 1 required task · ★★
    Builds on: Python Basics · While loops
  95. 91 The first letter · ⁨最初の文字⁩ 1 required task · ★
    Builds on: Python Basics · Working with strings · ⁨文字列の操作⁩
  96. 92 The last letter · ⁨最後の文字⁩ 1 required task · ★
    Builds on: Python Basics · Working with strings · ⁨文字列の操作⁩
  97. 93 The first three letters · ⁨最初の3文字⁩ 1 required task · ★
    Builds on: Python Basics · Working with strings · ⁨文字列の操作⁩
  98. 94 How long is it? · ⁨長さはいくつですか？⁩ 1 required task · ★
    Builds on: Python Basics · Working with strings · ⁨文字列の操作⁩
  99. 95 Shout it · ⁨大声で言う⁩ 1 required task · ★
    Builds on: Python Basics · Working with strings · ⁨文字列の操作⁩
  100. 96 Initials · ⁨イニシャル⁩ 1 required task · ★★
    Builds on: Python Basics · Working with strings · ⁨文字列の操作⁩
  101. 97 Ask for a name · ⁨名前を質問⁩ 1 required task · ★
    Builds on: Python Basics · Getting input · ⁨入力の取得⁩
  102. 98 Ask for two things · ⁨2つのものを聞く⁩ 1 required task · ★
    Builds on: Python Basics · Getting input · ⁨入力の取得⁩
  103. 99 A number from input 1 required task · ★
    Builds on: Python Basics · Getting input · ⁨入力の取得⁩
  104. 100 Add two numbers you were given · ⁨与えられた2つの数字を加算⁩ 1 required task · ★★
    Builds on: Python Basics · Getting input · ⁨入力の取得⁩
  105. 101 Each letter on its own line · ⁨各文字を別々の行に⁩ 1 required task · ★
    Builds on: Python Basics · Counting loops · ⁨カウントループ⁩
  106. 102 Zero to four · ⁨0から4まで⁩ 1 required task · ★
    Builds on: Python Basics · Counting loops · ⁨カウントループ⁩
  107. 103 Count the letters · ⁨文字の数を数える⁩ 1 required task · ★
    Builds on: Python Basics · Counting loops · ⁨カウントループ⁩
  108. 104 Add up one to five · ⁨1から5までの合計⁩ 1 required task · ★
    Builds on: Python Basics · Counting loops · ⁨カウントループ⁩

Language reference · ⁨言語リファレンス⁩

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Log in or create account · ⁨ログインまたはアカウント作成⁩

IGCSE, A-Level & AP