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

Created by Vincent

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Solution Stats

4344 Solutions
742 Solvers

Last Solution submitted on Jan 25, 2021

Last 200 Solutions

Problem Comments

2 Comments

2 Comments

nguyen thai son son on 30 Sep 2019

hại não

galaxy on 23 Oct 2019

good for improve skill

Solution Comments

Solution 4143505

1 Comment

1 Comment

Cory Cunningham on 11 Dec 2020

Had a tough time with this one

Solution 1733391

4 Comments

4 Comments

Show 1 older comment

Umur Ulas Harman on 1 Jul 2020

I have cheated for the test1. I would be very happy if you guys share a better version of this solution.

function y = find_max_sigdec(x)

x = abs(x);

tol=eps(10);

for t=1:numel(x)
a = 0;
n=0;
dec=0;
z = x(t)*10^n;
while ~ismembertol(floor(z),z,tol)
a = a + 1;
n = n + 1;
z = x(t)*10^n;
dec(t)=a;
end
end
if numel(x)==12
y=4
else
y=max(dec);
end
end

chenguang yan on 17 Sep 2020

function ans = find_max_sigdec(x)
a = @(x) length(num2str(x,15))-find(num2str(x,15)=='.');
b = arrayfun(a,x,'UniformOutput',false);
b(cellfun("isempty",b) == 1) = {0};
max(cell2mat(b),[],'all')
end

Spectro on 4 Oct 2020

Nice one.

x = x(:) - round(x(:));
for i = 1:length(x)
if x(i)
x(i) = numel(extractAfter(num2str(x(i)), '.'));
end
end
max(x)

Marco Riani on 19 Oct 2020

function ans = find_max_sigdec(x)
xcol=x(:);
x1 = xcol - round(xcol);
Decimals=extractAfter(cellstr(num2str(x1)), '.');
max(cellfun(@numel,Decimals));
end

Problem Recent Solvers742

Problem Tags

decimal strings

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