Problem 20. Summing digits

Solution 15948

Submitted on 30 Jan 2012

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Bojan on 30 Jan 2012

I'm not getting why my solution fails for a =16
b=sum(str2num(num2str(2^a)')) is 25 for a =16 and yet it fails

Test	Status	Code Input and Output
1	Fail	%% a = 1; b = 2; out = sumDigits(a); assert(isequal(out, b)) Error: Assertion failed.
2	Pass	%% a = 10; b = 7; out = sumDigits(a); assert(isequal(out, b))
3	Fail	%% a = 16; b = 25; out = sumDigits(a); assert(isequal(out, b)) Error: Assertion failed.

Test

Status

Code Input and Output

Fail

%% a = 1; b = 2; out = sumDigits(a); assert(isequal(out, b))

Error: Assertion failed.

Pass

%% a = 10; b = 7; out = sumDigits(a); assert(isequal(out, b))

Fail

%% a = 16; b = 25; out = sumDigits(a); assert(isequal(out, b))

Error: Assertion failed.