Cody

Problem 42672. longest sequence of nans

Solution 1693492

Submitted on 16 Dec 2018
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Test Suite

Test Status Code Input and Output
1   Fail
x = [ 2 3 1 2 5 6; nan nan 5 nan 6 -9; 5 nan 8 nan 6 5; 8 nan 7 -5 5.8 5; nan 0 0 nan 5 7; nan 5 9 nan 7 nan; nan nan 10 0 nan 6; nan nan 0 1 nan 9]; y_correct = [ 4 3 0 2 2 1]; assert(isequal(longnan(x),y_correct));

Error using ~ NaN's cannot be converted to logicals. Error in longnan (line 3) [rr,cc]=find((I(1:end-1,:)==true).*(~d)) Error in Test1 (line 11) assert(isequal(longnan(x),y_correct));

2   Fail
x = eye(3); y_correct = [0 0 0]; assert(isequal(longnan(x),y_correct));

rr = 0×1 empty double column vector cc = 0×1 empty double column vector y = 1 0 0 y = 1 1 0 y = 1 1 1

Assertion failed.

3   Fail
x = eye(3); x(1,1) = nan; y_correct = [1 0 0]; assert(isequal(longnan(x),y_correct));

Error using ~ NaN's cannot be converted to logicals. Error in longnan (line 3) [rr,cc]=find((I(1:end-1,:)==true).*(~d)) Error in Test3 (line 4) assert(isequal(longnan(x),y_correct));

4   Fail
x = [30 39 NaN 1 10 NaN 28 38 47 NaN 9 18 27 NaN 46 NaN NaN 17 NaN NaN 37 5 NaN NaN 25 NaN 36 NaN 13 15 NaN 33 NaN NaN NaN 21 NaN 32 41 43 3 NaN 22 31 NaN 49 2 NaN NaN]; y_correct = [0 2 5 0 3 1 4]; assert(isequal(longnan(x),y_correct));

Error using ~ NaN's cannot be converted to logicals. Error in longnan (line 3) [rr,cc]=find((I(1:end-1,:)==true).*(~d)) Error in Test4 (line 9) assert(isequal(longnan(x),y_correct));

5   Fail
x = nan(10); y_correct = repmat(10,1,10); assert(isequal(longnan(x),y_correct));

Error using ~ NaN's cannot be converted to logicals. Error in longnan (line 3) [rr,cc]=find((I(1:end-1,:)==true).*(~d)) Error in Test5 (line 3) assert(isequal(longnan(x),y_correct));