Cody

# Problem 2193. Mysterious digits operation (easy)

Solution 2945416

Submitted on 14 Sep 2020
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### Test Suite

Test Status Code Input and Output
1   Pass
x = 0; y_correct = 0; assert(isequal(what_digits(x),y_correct))

2   Fail
x = 1; y_correct = 9; assert(isequal(what_digits(x),y_correct))

Assertion failed.

3   Fail
x = 44; y_correct = 6; assert(isequal(what_digits(x),y_correct))

Error using str2num (line 35) Input must be a character vector or string scalar. Error in what_digits (line 6) num=str2num(x(end)); Error in Test3 (line 3) assert(isequal(what_digits(x),y_correct))

4   Fail
x = 15; y_correct = 5; assert(isequal(what_digits(x),y_correct))

Error using str2num (line 35) Input must be a character vector or string scalar. Error in what_digits (line 6) num=str2num(x(end)); Error in Test4 (line 3) assert(isequal(what_digits(x),y_correct))

5   Fail
x = 1243; y_correct = 7; assert(isequal(what_digits(x),y_correct))

Error using str2num (line 35) Input must be a character vector or string scalar. Error in what_digits (line 6) num=str2num(x(end)); Error in Test5 (line 3) assert(isequal(what_digits(x),y_correct))

6   Pass
x = 10; y_correct = 0; assert(isequal(what_digits(x),y_correct))

7   Pass
x = 1000; y_correct = 0; assert(isequal(what_digits(x),y_correct))

8   Pass
x = 1e5; y_correct = 0; assert(isequal(what_digits(x),y_correct))

9   Fail
x = 1e5+1; y_correct = 9; assert(isequal(what_digits(x),y_correct))

Error using str2num (line 35) Input must be a character vector or string scalar. Error in what_digits (line 6) num=str2num(x(end)); Error in Test9 (line 3) assert(isequal(what_digits(x),y_correct))

10   Fail
x = 1e5-1; y_correct = 1; assert(isequal(what_digits(x),y_correct))

Error using str2num (line 35) Input must be a character vector or string scalar. Error in what_digits (line 6) num=str2num(x(end)); Error in Test10 (line 3) assert(isequal(what_digits(x),y_correct))

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