Y**U
发帖数: 911 | 1 Citi ThankYou poinst 点怎么cash 性价比高 要关账户的话。 |
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f********l
发帖数: 435 | 2 注册，回答问题，redeem poinsts， done |
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f******z
发帖数: 237 | 3 二手交易风险自负！请自行验证是否合法和一手卡！:
我想卖的物品:
AMEX 100K points in one account
单张面值:
100K
可接受价格(必须明码标价！):
1.55 c/point + fee
物品新旧要求:
邮寄方式要求:
买卖双方谁承担邮寄损失(Required if not code only):
付款方式说明:
BOA
其他补充说明:
广告的有效期:
till sold
物品来源(Required for All Cards!):
AMEX
我的联系方式:
bbs mail
Warranty期限:
能否证明是合法的一手卡?(Required for All Cards!):
state and zip: |
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s*****e
发帖数: 36 | 4 Is there something wrong in my solution?
I think 100*100 blocks have 101*101 points in total.
Then we pick two of them to form a rectangle.
For the first one we have C(101*101,1). For the second one we have C(101*101
-101*2+1,1)=C(100^2,1) since we can not choose the poinsts in the same row/
column of the first one. And the order is not important. So I will have C(
101^2,1)*C(100^2,1)/2=(101*100)^2/2.
C(101,2)^2=(101*100)^2/4.
Can somebody let me know where my solution is wrong? Thanks. |
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d**********o
发帖数: 686 | 5 酒店原价$455/晚，
Points 是12K 每晚
Cash+Points 是 6K + $110 每晚
这两个选项都要加每晚$40的resort fee, 是category 5的酒店，现在纠结那个更划算
一点
多谢了 |
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O**n
发帖数: 179 | 7 you can think of buying 6000 points with $110. not too bad, especially you
don't have many points. You can save points for future use, since 6K+$110 vs
$455, . |
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n******e
发帖数: 2547 | 8 兩者差不多，但我怎麼記得全部點數兌換的話要交的 fee 會少 |
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s**********t
发帖数: 424 | 9 combine poinst，摸索一下就能找到了 |
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