How to create a random number as i asked below.

3 次查看（过去 30 天）
serkan yassikaya
serkan yassikaya 2015-6-3
评论： serkan yassikaya 2015-6-3
Hello everyone here is my question;
i want to create a random number with 4 number of digits but it needs some speciality.I mean 1 number shouldnt repeat again.For example
2222 is wrong 1234 is correct.
it supposed to be between 1000 and 9999 and user should guess the number for example again lets say our number is; 1234 if i guess 1235 program should output +++- or if i wrote 2234 program should -++-.
Thanks for helps.

请先登录，再回答此问题。

回答（2 个）

dpb
dpb 2015-6-3
doc randperm
  4 个评论
显示 2更早的评论
Salaheddin Hosseinzadeh
Salaheddin Hosseinzadeh 2015-6-3
编辑：Salaheddin Hosseinzadeh 2015-6-3
I like James solution, it's easy. Just keep K as 9 and be aware that you probably wont have a 0 in your digits. You also don't want any repeated digits so, your smallest value will be 1234, up to 9876.
James Tursa
James Tursa 2015-6-3
If you want the 0 possibility but not begin with 0, here are two solutions:
% Only one randperm call but solution not quite uniform distribution
x = randperm(10) - 1;
if( x(1) )
x = x(1:4);
else
x = x(2:5);
end
% Slightly more randperm calls on average, solution is uniform
x = 0;
while( x(1) == 0 )
x = randperm(10) - 1;
end
x = x(1:4);

请先登录，再进行评论。

serkan yassikaya
serkan yassikaya 2015-6-3
now i have this problem when im determining the equality of digits system gives answer with logical like; 0000 or 0101 but it should bt ++++ and ---- 's how may i change this setup.
Btw thanks a lot for your helps.
  4 个评论
显示 2更早的评论
serkan yassikaya
serkan yassikaya 2015-6-3

display('Tahmininizi yaptığınızda eğer doğru ise + yanlıs ise - alacaksınız!')

display('Eğer çok sıkılırsanız veya bulamaz ve sinirlenirseniz lütfen "game over" yazınız:)')

x = 0; while( x(1) == 0 ); x = randperm(10) - 1; end x = x(1:4);

a = x(1:1); b = x(2:2); c = x(3:3); d = x(4:4);

A = [a, b, c, d,]

prompt = 'Bir tahminde bulunun lütfen.';

H = input(prompt);

e = H/1000; e = floor(e); %binler basamağı buradan çıkar. r = H - e * 1000; r = r / 100; r = floor(r); % yüzler basamağı buradan çıkar. t = H-e*1000-r*100; t = t / 10; t = floor(t); y = H-e*1000-r*100-t*10; y = y / 1 ; y = floor(y); %onlar basamağı burdan çıkar.

J = [e,r,t,y,]

g = logical([0 1 0 1]); mp= '-+'; s = mp(g+1);

A == J

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Uniform Distribution (Continuous) 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by