Problem 713. Find the maximum number of decimal places in a set of numbers

Created by Vincent

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Solution Stats

10991 Solutions
1626 Solvers

Last Solution submitted on Sep 30, 2022

Last 200 Solutions

Problem Comments

9 Comments

9 Comments

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nguyen thai son son on 30 Sep 2019

hại não

galaxy on 23 Oct 2019

good for improve skill

goc3 on 29 Mar 2021

@Ayesha Alfili HCT2021: your comment was deleted, as it revealed a large part of a potential solution. If you need help with an attempted solution, comment on that solution without copying it into a comment.

akihisa yorozu on 21 Aug 2021

I feel some uncomfortableness to solve with a not mathematical method, like text processing. But it may smarter than take care of floating point, round error, etc.

Amit Jakubowitz on 18 Sep 2021

hi my code works for tests 1 3 4 but not for test 2, can anyone help me?
here is my code:

function y = find_max_sigdec(x)
how_much_dec=[0]*[length(x)];
for i=1:length(x);
count=0;
while x(i)~=round(x(i))
x(i)=x(i)*10;
count=count+1;
end
how_much_dec(i)=count
end
y=max(how_much_dec)
end

Matthew Bronson on 7 Oct 2021

struggled for a bit with "format long" adding a value at 1e15.

Elizabeth Moschello on 1 Dec 2021

definitely a tough problem!

GeeTwo on 6 Aug 2022

Easy problem, vexing test suite. Be sure to clear the workspace (especially x) between tests!

Saleh Ibrahim on 28 Aug 2022

Good problem. But don't waste your time trying to achieve size 10. It took me a couple of hours to figure out that it's just a trick using a built-in function to evaluate the program embedded within a string. This shouldn't be acceptable. The smallest solution size is probably in the 20s.