Solution 1172354

Submitted on 26 Apr 2017

Size: 47
Leading solution size is 7.

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1 Comment

1 Comment

Matthew Jones on 26 Apr 2017

When I run the following solution for Test Suite #1, I get a zero in my solution array. If I replace c(i) with c, I get back a 2 and 3 (no zero). What is going on that a zero shows up?

[count, val] = histcounts(categorical(vect))
val = cellfun(@str2double, val) % convert val from string to numerical
for i = 1:length(count)
if count(i) == 3
c(i) = val(i)
end
end

Test Suite

Test	Status	Code Input and Output
1	Fail	x = [1 2 5 2 2 7 8 3 3 1 3 8 8 8]; y_correct = [2 3]; assert(isequal(threeTimes(x),y_correct)) count = 2 3 3 1 1 4 val = 1×6 cell array '1' '2' '3' '5' '7' '8' val = 1 2 3 5 7 8 y = 0 2 y = 0 2 3 Assertion failed.
2	Pass	x = [1 1 1]; y_correct = [1]; assert(isequal(threeTimes(x),y_correct)) count = 3 val = cell '1' val = 1 y = 1
3	Pass	x = [5 10 -3 10 -3 11 -3 5 5 7]; y_correct = [-3 5]; assert(isequal(threeTimes(x),y_correct)) count = 3 3 1 2 1 val = 1×5 cell array '-3' '5' '7' '10' '11' val = -3 5 7 10 11 y = -3 y = -3 5

Test

Status

Code Input and Output

Fail

x = [1 2 5 2 2 7 8 3 3 1 3 8 8 8]; y_correct = [2 3]; assert(isequal(threeTimes(x),y_correct))

count = 2 3 3 1 1 4 val = 1×6 cell array '1' '2' '3' '5' '7' '8' val = 1 2 3 5 7 8 y = 0 2 y = 0 2 3

Assertion failed.

Pass

x = [1 1 1]; y_correct = [1]; assert(isequal(threeTimes(x),y_correct))

count = 3 val = cell '1' val = 1 y = 1

Pass

x = [5 10 -3 10 -3 11 -3 5 5 7]; y_correct = [-3 5]; assert(isequal(threeTimes(x),y_correct))

count = 3 3 1 2 1 val = 1×5 cell array '-3' '5' '7' '10' '11' val = -3 5 7 10 11 y = -3 y = -3 5

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Problem 39. Which values occur exactly three times?

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