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    Re:為何海倫公式不行?樣例能過,也帶了兩個凹多邊形也是對的,所以錯在哪里了?或者求人給反例數據,謝謝

    Posted by 17540220 at 2018-03-06 20:43:44 on Problem 2036
    (119)  


    為何我復制你的代碼過來,輸出都是-1.$
    
    
    
    輸入 3 0 0 3 0 0 4 返回就是-1.$了


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