【01】1元1瓶汽水，2個空瓶再換1瓶汽水，30元最多能喝幾瓶？ · 高先生_前端題庫 · 看云

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合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。廣告

常規答案一：59 先買30瓶，30個瓶子換15瓶，15瓶可以換7瓶還剩一個空瓶，7瓶可以換3瓶，加剛剛一個空瓶等于換4瓶，4瓶可以換2瓶，2瓶可以換1瓶。30+15+7+4+2+1=59；邏輯答案二：60 如上所述，最后一瓶喝完仍剩余一個瓶空瓶，可以先預借一個瓶子，然后再用兩個空瓶換一瓶新的還回去。

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