別忘了有一個因數是個人基本利益
首先多謝之前playcard 的解答。但你在這條問題上,卻忘了有一個因數是個人基本利益,如果我係海盜4或5我都會在你這提議投反對票。
你的提議,太聰明但太狠,比方說在這題目上每個海盜平均是每人有20夥,但你這提議令我損失19夥,我為何不投反對,結果是把你投海餵鯊。當然你可說原本如果抽到4及5的其實等於沒有機會分到。
我自己prefer to 34,33,33,0,0雖。這當然不是答案,但如不分給足夠好處給2,3這兩人。任何一個投反對,以後每次可分到的比例就越多〔第2個人可能要用50,50,0,0 。否則第3人有私心又可否�並D議,令之後分配比例又增加。 〕
卻忘了有一個因數是個人基本利益
剛跟朋友商議,是78,0,0,21,21。要肯定得到支持通過,必須拉攏原本沒得到利益的人,再在其基本利益上加上一點點好處才肯定沒阻礙、最重要是沒風險。 其實這個題目關鍵在於性命重要還是寶石重要,因為只要方案給反對,自己便會死,所以要給贊成自己的人最大利益。
情況一(超過半數才可通過)
如果只剩下二人(4,5),5就可以得100粒寶石,所以4要支持3的方案。但4會否只為了性命而放棄寶石、3會否冒險要100粒寶石而怕4同歸於盡呢?所以3會為了自己的收益最大化而同4平分,即是二人各得也是最多會得五十粒寶石。另外5不會令到最後只剩下三人,否則他什麼也沒有,就算只剩下四人,3、4也會反對。但是5是不會死的,所以1要給5最大利益,即是五十粒寶石。
基於3、4、5的max寶石分別是50、50、50,所以1要給3或4或5其中二人五十粒寶石、自己沒有寶石,那便有三個人贊成,否則死路一條。
情況二(超過半數或半數便可通過)
如果只剩下二人(4,5),4就可以得100粒寶石,所以5要支持3的方案。即是二人各得也是最多會得五十粒寶石。
如果只剩下四人(2,3,4,5),2只要給3或5五十粒寶石、自己也是五十粒寶石便可。
基於2、3、4、5的max寶石分別是50、50、100、50,所以1要給2或3或5其中二人五十粒寶石、自己沒有寶石,那便有三個人贊成,否則死路一條。 1st:40
2nd:26
3rd:34
4th:0
5th:0
because B thinks if 4 people share, they'll have 25 for each. now he has 1 more. and C thinks 3 people share, they'll have 33-34 each, now he's getting 34. same concept, D wants more than 50, and E wants 100 all. but all we need is 2 more people agree with the 1st one. so just pick 2 people whoever expect the less amount. the question clearly said that "has to be more than half agree"
if only 4 and 5 left
5 will refuse to any offer then 4 will die and 5 gets all 100 diamonds
///
if 3,4,5 left
4 must agree to any offer since he will die if 3 dies, so 3 will say 100,0,0 and 4 gets no diamonds but gets to stay alive
///
if 2,3,4,5 left
2 can stay alive if at least three people agrees including him. 3 will disagree since if 2 dies he will get all the diamonds. 4 gets no diamond when 2 dies so if 2 give him something 4 will agree. now for 5, if he disagrees and if 3 did pick 100,0,0 then he gets no diamond also. for 2, he will say 98,0,1,1.
///
now 1,2,3,4,5
1 can say alive if at least three people agrees including him. 2 knows if 1 dies he can get most of the diamonds and 4 and 5 also know if 1 dies both can get a diamond, 3 will get nothing if 1 dies. therefore if 1 say 95,0,1,2,2. /// 1 will be safe for sure, he gets 4 votes. BUT to maximize, 1 can say 96,0,0,2,2 then he will get 3 votes a bit risky though
///
my answer is 96,0,0,2,2 98,1,0,1,0 95,0,0,3,2 聽過啦 [quote][quotefrom="troyhudson16"]聽過啦[/quote]
do u know the actual answer?
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[quote][quotefrom="andy11"]98,1,0,1,0[/quote]I've got the same answer with you. 我記得有一度有Post..等我搵搵先
如果我是第4人,我會投反對票
andy11 寫到:98,1,0,1,0
如果第4人只有一夥,他必投反對票。
我也從最後開始分析,如果只剩下4、5兩人,要5都支持,只有 0:100,
因此返回剩下3,4及5。這時我無論如何都要支持3的建議,通常會係99:1:0,
即是說我這時才投支持票,我還是最少有1夥。我還有很多談判籌碼。
在甚麼時候我的得益是最大呢?就是在第1人死後,第2人的建議,因為他要得到4,5人的支持才過半數〔3因為2死後是最大得益者,必定反對他〕。
因為第2人的建議是很難獲得同時3個人的支持,第4及5人的得益一定係最多。
亦因為原本第4,5人的得益跟第2人扯上大關係,第1人的動議如沒足夠吸引力,第4,5人都投反對。 so what is the answer?
我想.
我想答案一定是a自己100吧...因為a投給任何一個人一票都是沒意思的...不過原因我就不清楚了我也不知道答案
[quote][quotefrom="andy11"]so what is the answer?[/quote]但我們作天的同事都agree 56:1:1:21:21
因為4及5都想第1人死,才會有第2人提出對他們最有利方案,他們這時才會支持。故此第1人提出的反而係要拉攏他們,否則死路一條。而其他2及3人,尤其第3人,只收一夥都會贊成。 i've seen people talking about 拉攏 the 4 and 5, but think of that, 5 will disagree no matter what, 'cause he'll never die and has a chance to get all 100. the other hand, 4 will agree no matter what, 'cause once 1 die, 2 will die, and 3 will die or gets all, 4 will get nothing still. so all we need is one more person agree.
3 has a chance to get all or die. it's difficult to think what he gonna try. so 拉攏 3 is very difficult, then 拉攏 2 is the best way.
if i am 2, if i'll do almost 50,50,0,0 so 2,3,4 will vote agree. otherwise, if 3 disagree, he'll die.
so all we need to give 2, is 50.
we be safe, i'll try 50,50,0,0,0 so we get 1,2,4 agree.
~
如果我係5,我就認為最好1,2,3,4都死晒,咁我就可以獨吞晒100%,
所以無論1,2,3,4肯分幾多俾我都好,
我都一定會投反對票~~ 我估到剩下紅心Q,4,磚5
當然大家憑Mr.Q最後一句話估到la
但Mr.Q憑什麼估到呢?
可否explain下Mr.Q的如何知道ansnwer everun said
如果我係5,我就認為最好1,2,3,4都死晒,
咁我就可以獨吞晒100%,
所以無論1,2,3,4肯分幾多俾我都好,
我都一定會投反對票~~
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that is in fact not true, when 1 and 2 dies, 3 gets to make decision and no matter what 3 says 4 will vote agree because if only 4 and 5 left 4 will die for sure. So 3 will choose 100,0,0 and force 4 to vote agree (he gets to stay alive) and 5 end up with nothing.
so 5's vote is very important when 1 and 2 is making decision. Don't forget about him
by the way, my answer is still 96,0,0,2,2 =P 如果全部要過半數﹐問題本身就唔成立。
所以正確應該係起碼半數通過。即係話如果有五個人﹐就要有三個贊成。四個人就要有兩個贊成﹐如此類推。