[old] Even the Last

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あなたは整数の配列が与えられます。あなたはインデックスが偶数(0番目、2番目、4番目…)である要素の和を求めてから、この和と配列の最後の要素を掛けなければいけません。最初の要素のインデックスが0であることを忘れてはいけません。

空の配列については、結果は常に0(ゼロ)になるでしょう。 ...

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