August 2025
Intermediate
216 pages
5h 41m
Japanese
Content preview from Pythonレベルアップドリル 初心者から一歩進むための厳選問題集
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★★★★★
13
★★★★
★
あなたは、10歳未満の子供には優しく、その他の人には厳しいじゃんけんプログ
ラムを作ろうとしています。
じゃんけんをする相手の年齢と相手が出す手が与えられるので、相手が10 歳未満
の場合は相手に負ける手を、10歳以上の場合は相手に勝つ手を出してください。た
だし、プログラム上ではグー（Rock）を "R"、パー（Paper）を"P"、チョキ（Scissors）
を"S" で表すことにします。
入力される値
1行目に、じゃんけんをする相手の年齢yと相手が出す手 hが半角スペース区切り
で与えられます。
y h
すべてのテストケースにおいて、以下の条件を満たします。
1≦y≦100
hは "R"、"P"、"S" のいずれか
期待する出力
相手が10歳未満の場合は相手に負ける手を、10歳以上の場合は相手に勝つ手を
求め、出力してください。
9 P
R
じゃんけんの手を文字列"RPS"として変数 rpsに格納します。その後、変数rpsの
findメソッドで相手のじゃんけんの手のインデックスを取得し、変数ans_indexに
格納します。
180
もし相手の年齢が10 歳未満であれば、変数 ans_indexの値を -1、10歳以上なら+1
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.