Painting Wall

Painting Wall

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ニコラは壁を塗るための簡単なロボットを作りました。 壁は1メートルごとにしるしが付いていて、ロボットは塗る操作のリストを記憶しています。 それぞれの操作は壁のどの部分を塗るかを開始する場所と終了する場所(端を含みます)で示しています。 例として、[1, 5]という操作は1番目から5番目を、1番目と5番目を含めて塗ることを意味しています。 操作はリストに書かれた順番で行われます。 異なる操作の範囲が重なっていた場合、 それらは1回のみ数えます

ステファンは操作のリストを作りましたが、ロボットに実行させる前に、我々はそれをチェックしなければなりません。 塗るべき壁の長さ(塗る場所は連続していなくても構いません)とステファンが用意したリストが与えられるので、 ...

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