問題 G: Friends number

問題 G: Friends number 時間限制: 1 Sec  內存限制: 128 MB 提交: 7  解決: 6 [提交] [狀態] [討論版] [命題人:外部導入]php 題目描述less   Paula and Tai are couple. There are many stories between them. The day Paula left by airplane, Tai

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