[猜謎] 計算這一題需要多久時間?
87×86×85×....×64
────────── =?
24×23×22×....×1
拜託了,幫我撐10秒
87
C
63
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噓
06/12 13:47, , 1F
06/12 13:47, 1F
噓
06/12 14:53, , 2F
06/12 14:53, 2F
噓
06/12 15:16, , 3F
06/12 15:16, 3F
→
06/12 15:16, , 4F
06/12 15:16, 4F
→
06/12 18:15, , 5F
06/12 18:15, 5F
推
06/12 18:57, , 6F
06/12 18:57, 6F
推
06/12 23:36, , 7F
06/12 23:36, 7F
推
06/13 00:26, , 8F
06/13 00:26, 8F