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Php prize winning probability algorithm and big turntable lottery algorithm. The php winning probability algorithm can be used to draw lottery algorithms such as scratch cards and big turntable. The usage is very simple. the code has a detailed description. you can understand $ proCur at a glance) {$ randNummt_rand (1, $ proSum); I php winning probability algorit

Design mode of the item drop probability table: PHP mysql The younger brother posted the post for the first time ~ Drop probability table Id item id adventure activity copy battle... 1 5 8 10 12 14 2 7 15 5 20 0 3 9 20 0 30 0 The probability that an item (item id) drops in an action (such as adventure or copy) Can I create this table like this? How to write P

Test instructions: A , b throw the dice, for each of the points of the big wins, flat for and, a first win m times a won, the second wins n times b win. WA so many times this problem data is wrong, two people's blood is mistaken, the amount of the input of a is actually B, the input B is actually a, because of the interference of the draw phenomenon, so the first draw included in a win probability B win probabilities are calculated out, And then minus

that it's a transpose of the original matrix.This time let b1,b2,b3 distribution reverse output, that is, output B1[::-1],B2[::-2],B3[::-3], obviously, the result is a clockwise rotation of 90° resultsSimilarly, if a nested list is passed in, the result can be output by means of a *, for example:Zip (*[(1, 4, 7), (2, 5, 8), (3, 6, 9)]) Zip (*[[1, 4, 7], [2, 5, 8], [3, 6, 9]])The output results are:[(1, 2, 3), (4, 5, 6), (7, 8, 9)]This very abstract function also has a magical magic----randomly

(expect the farmers to get the right to license ...) The number of hands above both can walk the card and high top of the 2 to do "can go Card hand not put", there are aaa,222 licensing the crossroads to do "Choose the landlord as small as possible probability" The above example can also be regarded as a loss of the game after the re-disk, why the top 2, and not the top K, any step of the card can be found, this re-disk is practical meaning that the

Topic Link:http://uva.onlinejudge.org/index.php?option=com_onlinejudgeitemid=8page=show_problem problem=1962 The main topic: give you k a hair ball, each hair ball can only survive one day, but each hair ball has pi probability multiply I a hair ball, ask the probability of death of all hair balls in M days. (All wool balls are independent and non-existent) Problem-solving ideas: first, because each hair ba

Sometimes, you can get an activity or something to get users to participate in the project. This not only attracts users to register, but also improves the user activity of the website. At the same time, the participating users will receive certain prizes, including 100% of the prize winners, and those who win at a certain probability, such as the medium ipad and the small medium qcoin. In fact, I feel that this blog post is useless. it's too simple.

This article will share with you the php winning probability algorithm, which can be used for scratch cards, big turntable, and other lottery algorithms. The usage is very simple. the code has a detailed description, which can be understood at a glance. For more information, see. First, complete the PHP process in the background. The main task of PHP is to configure the awards and the corresponding winning probabi