Cody

# Problem 1162. Happy 2013...

Solution 272583

Submitted on 3 Jul 2013 by Evan
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### Test Suite

Test Status Code Input and Output
1   Pass
!cp diff_digits.m safe !rm *.* !mv safe diff_digits.m % Clean user's function from some known jailbreaking mechanisms fid = fopen('diff_digits.m'); st = regexprep(char(fread(fid)'), '!', 'error(''No shell commands!''); %'); st = regexprep(st, 'feval', 'error(''No fancy functions!''); %'); st = regexprep(st, 'str2func', 'error(''No fancy functions!''); %'); st = regexprep(st, 'regex', 'error(''No fancy functions!''); %'); st = regexprep(st, 'system', 'error(''No shell commands!''); %'); st = regexprep(st, 'dos', 'error(''No shell commands!''); %'); st = regexprep(st, 'unix', 'error(''No shell commands!''); %'); st = regexprep(st, 'perl', 'error(''No external languages commands!''); %'); st = regexprep(st, 'java', 'error(''No external languages commands!''); %'); st = regexprep(st, 'assert', 'error(''No overwriting!''); %'); fclose(fid) fid = fopen('diff_digits.m' , 'w'); fwrite(fid,st); fclose(fid)

``` ans = 0 ans = 0 ```

2   Pass
%% start=1000; finish=1023; y_correct = 1; assert(isequal(diff_digits(start,finish),y_correct))

``` a = 1 0 0 0 1 0 0 1 1 0 0 2 1 0 0 3 1 0 0 4 1 0 0 5 1 0 0 6 1 0 0 7 1 0 0 8 1 0 0 9 1 0 1 0 1 0 1 1 1 0 1 2 1 0 1 3 1 0 1 4 1 0 1 5 1 0 1 6 1 0 1 7 1 0 1 8 1 0 1 9 1 0 2 0 1 0 2 1 1 0 2 2 1 0 2 3 ans = 1 ```

3   Pass
%% start=1000; finish=9999; y_correct = 4536; assert(isequal(diff_digits(start,finish),y_correct))

``` a = 1 0 0 0 1 0 0 1 1 0 0 2 1 0 0 3 1 0 0 4 1 0 0 5 1 0 0 6 1 0 0 7 1 0 0 8 1 0 0 9 1 0 1 0 1 0 1 1 1 0 1 2 1 0 1 3 1 0 1 4 1 0 1 5 1 0 1 6 1 0 1 7 1 0 1 8 1 0 1 9 1 0 2 0 1 0 2 1 1 0 2 2 1 0 2 3 1 0 2 4 1 0 2 5 1 0 2 6 1 0 2 7 1 0 2 8 1 0 2 9 1 0 3 0 1 0 3 1 1 0 3 2 1 0 3 3 1 0 3 4 1 0 3 5 1 0 3 6 1 0 3 7 1 0 3 8 1 0 3 9 1 0 4 0 1 0 4 1 1 0 4 2 1 0 4 3 1 0 4 4 1 0 4 5 1 0 4 6 1 0 4 7 1 0 4 8 1 0 4 9 1 0 5 0 1 0 5 1 1 0 5 2 1 0 5 3 1 0 5 4 1 0 5 5 1 0 5 6 1 0 5 7 1 0 5 8 1 0 5 9 1 0 6 0 1 0 6 1 1 0 6 2 1 0 6 3 1 0 6 4 1 0 6 5 1 0 6 6 1 0 6 7 1 0 6 8 1 0 6 9 1 0 7 0 1 0 7 1 1 0 7 2 1 0 7 3 1 0 7 4 1 0 7 5 1 0 7 6 1 0 7 7 1 0 7 8 1 0 7 9 1 0 8 0 1 0 8 1 1 0 8 2 1 0 8 3 1 0 8 4 1 0 8 5 1 0 8 6 1 0 8 7 1 0 8 8 1 0 8 9 1 0 9 0 1 0 9 1 1 0 9 2 1 0 9 3 1 0 9 4 1 0 9 5 1 0 9 6 1 0 9 7 1 0 9 8 1 0 9 9 1 1 0 0 1 1 0 1 1 1 0 2 1 1 0 3 1 1 0 4 1 1 0 5 1 1 0 6 1 1 0 7 1 1 0 8 1 1 0 9 1 1 1 0 1 1 1 1 1 1 1 2 1 1 1 3 1 1 1 4 1 1 1 5 1 1 1 6 1 1 1 7 1 1 1 8 1 1 1 9 1 1 2 0 1 1 2 1 1 1 2 2 1 1 2 3 1 1 2 4 1 1 2 5 1 1 2 6 1 1 2 7 1 1 2 8 1 1 2 9 1 1 3 0 1 1 3 1 1 1 3 2 1 1 3 3 1 1 3 4 1 1 3 5 1 1 3 6 1 1 3 7 1 1 3 8 1 1 3 9 1 1 4 0 1 1 4 1 1 1 4 2 1 1 4 3 1 1 4 4 1 1 4 5 1 1 4 6 1 1 4 7 1 1 4 8 1 1 4 9 1 1 5 0 1 1 5 1 1 1 5 2 1 1 5 3 1 1 5 4 1 1 5 5 1 1 5 6 1 1 5 7 1 1 5 8 1 1 5 9 1 1 6 0 1 1 6 1 1 1 6 2 1 1 6 3 1 1 6 4 1 1 6 5 1 1 6 6 1 1 6 7 1 1 6 8 1 1 6 9 1 1 7 0 1 1 7 1 1 1 7 2 1 1 7 3 1 1 7 4 1 1 7 5 1 1 7 6 1 1 7 7 1 1 7 8 1 1 7 9 1 1 8 0 1 1 8 1 1 1 8 2 1 1 8 3 1 1 8 4 1 1 8 5 1 1 8 6 1 1 8 7 1 1 8 8 1 1 8 9 1 1 9 0 1 1 9 1 1 1 9 2 1 1 9 3 1 1 9 4 1 1 9 5 1 1 9 6 1 1 9 7 1 1 9 8 1 1 9 9 1 2 0 0 1 2 0 1 1 2 0 2 1 2 0 3 1 2 0 4 1 2 0 5 1 2 0 6 1 2 0 7 1 2 0 8 1 2 0 9 1 2 1 0 1 2 1 1 1 2 1 2 1 2 1 3 1 2 1 4 1 2 1 5 1 2 1 6 1 2 1 7 1 2 1 8 1 2 1 9 1 2 2 0 1 2 2 1 1 2 2 2 1 2 2 3 1 2 2 4 1 2 2 5 1 2 2 6 1 2 2 7 1 2 2 8 1 2 2 9 1 2 3 0 1 2 3 1 1 2 3 2 1 2 3 3 1 2 3 4 1 2 3 5 1 2 3 6 1 2 3 7 1 2 3 8 1 2 3 9 1 2 4 0 1 2 4 1 1 2 4 2 1 2 4 3 1 2 4 4 1 2 4 5 1 2 4 6 1 2 4 7 1 2 4 8 1 2 4 9 1 2 5 0 1 2 5 1 1 2 5 2 1 2 5 3 1 2 5 4 1 2 5 5 1 2 5 6 1 2 5 7 1 2 5 8 1 2 5 9 1 2 6 0 1 2 6 1 1 2 6 2 1 2 6 3 1 2 6 4 1 2 6 5 1 2 6 6 1 2 6 7 1 2 6 8 1 2 6 9 1 2 7 0 1 2 7 1 1 2 7 2 1 2 7 3 1 2 7 4 1 2 7 5 1 2 7 6 1 2 7 7 1 2 7 8 1 2 7 9 1 2 8 0 1 2 8 1 1 2 8 2 1 2 8 3 1 2 8 4 1 2 8 5 1 2 8 6 1 2 8 7 1 2 8 8 1 2 8 9 1 2 9 0 1 2 9 1 1 2 9 2 1 2 9 3 1 2 9 4 1 2 9 5 1 2 9 6 1 2 9 7 1 2 9 8 1 2 9 9 1 3 0 0 1 3 0 1 1 3 0 2 1 3 0 3 1 3 0 4 1 3 0 5 1 3 0 6 1 3 0 7 1 3 0 8 1 3 0 9 1 3 1 0 1 3 1 1 1 3 1 2 1 3 1 3 1 3 1 4 1 3 1 5 1 3 1 6 1 3 1 7 1 3 1 8 1 3 1 9 1 3 2 0 1 3 2 1 1 3 2 2 1 3 2 3 1 3 2 4 1 3 2 5 1 3 2 6 1 3 2 7 1 3 2 8 1 3 2 9 1 3 3 0 1 3 3 1 1 3 3 2 1 3 3 3 1 3 3 4 1 3 3 5 1 3 3 6 1 3 3 7 1 3 3 8 1 3 3 9 1 3 4 0 1 3 4 1 1 3 4 2 1 3 4 3 1 3 4 4 1 3 4 5 1 3 4 6 1 3 4 7 1 3 4 8 1 3 4 9 1 3 5 0 1 3 5 1 1 3 5 2 1 3 5 3 1 3 5 4 1 3 5 5 1 3 5 6 1 3 5 7 1 3 5 8 1 3 5 9 1 3 6 0 1 3 6 1 1 3 6 2 1 3 6 3 1 3 6 4 1 3 6 5 1 3 6 6 1 3 6 7 1 3 6 8 1 3 6 9 1 3 7 0 1 3 7 1 1 3 7 2 1 3 7 3 1 3 7 4 1 3 7 5 1 3 7 6 1 3 7 7 1 3 7 8 1 3 7 9 1 3 8 0 1 3 8 1 1 3 8 2 1 3 8 3 1 3 8 4 1 3 8 5 1 3 8 6 1 3 8 7 1 3 8 8 1 3 8 9 1 3 9 0 1 3 9 1 1 3 9 2 1 3 9 3 1 3 9 4 1 3 9 5 1 3 9 6 1 3 9 7 1 3 9 8 1 3 9 ...```

4   Pass
%% start=1234; finish=5678; y_correct = 2273; assert(isequal(diff_digits(start,finish),y_correct))

``` a = 1 2 3 4 1 2 3 5 1 2 3 6 1 2 3 7 1 2 3 8 1 2 3 9 1 2 4 0 1 2 4 1 1 2 4 2 1 2 4 3 1 2 4 4 1 2 4 5 1 2 4 6 1 2 4 7 1 2 4 8 1 2 4 9 1 2 5 0 1 2 5 1 1 2 5 2 1 2 5 3 1 2 5 4 1 2 5 5 1 2 5 6 1 2 5 7 1 2 5 8 1 2 5 9 1 2 6 0 1 2 6 1 1 2 6 2 1 2 6 3 1 2 6 4 1 2 6 5 1 2 6 6 1 2 6 7 1 2 6 8 1 2 6 9 1 2 7 0 1 2 7 1 1 2 7 2 1 2 7 3 1 2 7 4 1 2 7 5 1 2 7 6 1 2 7 7 1 2 7 8 1 2 7 9 1 2 8 0 1 2 8 1 1 2 8 2 1 2 8 3 1 2 8 4 1 2 8 5 1 2 8 6 1 2 8 7 1 2 8 8 1 2 8 9 1 2 9 0 1 2 9 1 1 2 9 2 1 2 9 3 1 2 9 4 1 2 9 5 1 2 9 6 1 2 9 7 1 2 9 8 1 2 9 9 1 3 0 0 1 3 0 1 1 3 0 2 1 3 0 3 1 3 0 4 1 3 0 5 1 3 0 6 1 3 0 7 1 3 0 8 1 3 0 9 1 3 1 0 1 3 1 1 1 3 1 2 1 3 1 3 1 3 1 4 1 3 1 5 1 3 1 6 1 3 1 7 1 3 1 8 1 3 1 9 1 3 2 0 1 3 2 1 1 3 2 2 1 3 2 3 1 3 2 4 1 3 2 5 1 3 2 6 1 3 2 7 1 3 2 8 1 3 2 9 1 3 3 0 1 3 3 1 1 3 3 2 1 3 3 3 1 3 3 4 1 3 3 5 1 3 3 6 1 3 3 7 1 3 3 8 1 3 3 9 1 3 4 0 1 3 4 1 1 3 4 2 1 3 4 3 1 3 4 4 1 3 4 5 1 3 4 6 1 3 4 7 1 3 4 8 1 3 4 9 1 3 5 0 1 3 5 1 1 3 5 2 1 3 5 3 1 3 5 4 1 3 5 5 1 3 5 6 1 3 5 7 1 3 5 8 1 3 5 9 1 3 6 0 1 3 6 1 1 3 6 2 1 3 6 3 1 3 6 4 1 3 6 5 1 3 6 6 1 3 6 7 1 3 6 8 1 3 6 9 1 3 7 0 1 3 7 1 1 3 7 2 1 3 7 3 1 3 7 4 1 3 7 5 1 3 7 6 1 3 7 7 1 3 7 8 1 3 7 9 1 3 8 0 1 3 8 1 1 3 8 2 1 3 8 3 1 3 8 4 1 3 8 5 1 3 8 6 1 3 8 7 1 3 8 8 1 3 8 9 1 3 9 0 1 3 9 1 1 3 9 2 1 3 9 3 1 3 9 4 1 3 9 5 1 3 9 6 1 3 9 7 1 3 9 8 1 3 9 9 1 4 0 0 1 4 0 1 1 4 0 2 1 4 0 3 1 4 0 4 1 4 0 5 1 4 0 6 1 4 0 7 1 4 0 8 1 4 0 9 1 4 1 0 1 4 1 1 1 4 1 2 1 4 1 3 1 4 1 4 1 4 1 5 1 4 1 6 1 4 1 7 1 4 1 8 1 4 1 9 1 4 2 0 1 4 2 1 1 4 2 2 1 4 2 3 1 4 2 4 1 4 2 5 1 4 2 6 1 4 2 7 1 4 2 8 1 4 2 9 1 4 3 0 1 4 3 1 1 4 3 2 1 4 3 3 1 4 3 4 1 4 3 5 1 4 3 6 1 4 3 7 1 4 3 8 1 4 3 9 1 4 4 0 1 4 4 1 1 4 4 2 1 4 4 3 1 4 4 4 1 4 4 5 1 4 4 6 1 4 4 7 1 4 4 8 1 4 4 9 1 4 5 0 1 4 5 1 1 4 5 2 1 4 5 3 1 4 5 4 1 4 5 5 1 4 5 6 1 4 5 7 1 4 5 8 1 4 5 9 1 4 6 0 1 4 6 1 1 4 6 2 1 4 6 3 1 4 6 4 1 4 6 5 1 4 6 6 1 4 6 7 1 4 6 8 1 4 6 9 1 4 7 0 1 4 7 1 1 4 7 2 1 4 7 3 1 4 7 4 1 4 7 5 1 4 7 6 1 4 7 7 1 4 7 8 1 4 7 9 1 4 8 0 1 4 8 1 1 4 8 2 1 4 8 3 1 4 8 4 1 4 8 5 1 4 8 6 1 4 8 7 1 4 8 8 1 4 8 9 1 4 9 0 1 4 9 1 1 4 9 2 1 4 9 3 1 4 9 4 1 4 9 5 1 4 9 6 1 4 9 7 1 4 9 8 1 4 9 9 1 5 0 0 1 5 0 1 1 5 0 2 1 5 0 3 1 5 0 4 1 5 0 5 1 5 0 6 1 5 0 7 1 5 0 8 1 5 0 9 1 5 1 0 1 5 1 1 1 5 1 2 1 5 1 3 1 5 1 4 1 5 1 5 1 5 1 6 1 5 1 7 1 5 1 8 1 5 1 9 1 5 2 0 1 5 2 1 1 5 2 2 1 5 2 3 1 5 2 4 1 5 2 5 1 5 2 6 1 5 2 7 1 5 2 8 1 5 2 9 1 5 3 0 1 5 3 1 1 5 3 2 1 5 3 3 1 5 3 4 1 5 3 5 1 5 3 6 1 5 3 7 1 5 3 8 1 5 3 9 1 5 4 0 1 5 4 1 1 5 4 2 1 5 4 3 1 5 4 4 1 5 4 5 1 5 4 6 1 5 4 7 1 5 4 8 1 5 4 9 1 5 5 0 1 5 5 1 1 5 5 2 1 5 5 3 1 5 5 4 1 5 5 5 1 5 5 6 1 5 5 7 1 5 5 8 1 5 5 9 1 5 6 0 1 5 6 1 1 5 6 2 1 5 6 3 1 5 6 4 1 5 6 5 1 5 6 6 1 5 6 7 1 5 6 8 1 5 6 9 1 5 7 0 1 5 7 1 1 5 7 2 1 5 7 3 1 5 7 4 1 5 7 5 1 5 7 6 1 5 7 7 1 5 7 8 1 5 7 9 1 5 8 0 1 5 8 1 1 5 8 2 1 5 8 3 1 5 8 4 1 5 8 5 1 5 8 6 1 5 8 7 1 5 8 8 1 5 8 9 1 5 9 0 1 5 9 1 1 5 9 2 1 5 9 3 1 5 9 4 1 5 9 5 1 5 9 6 1 5 9 7 1 5 9 8 1 5 9 9 1 6 0 0 1 6 0 1 1 6 0 2 1 6 0 3 1 6 0 4 1 6 0 5 1 6 0 6 1 6 0 7 1 6 0 8 1 6 0 9 1 6 1 0 1 6 1 1 1 6 1 2 1 6 1 3 1 6 1 4 1 6 1 5 1 6 1 6 1 6 1 7 1 6 1 8 1 6 1 9 1 6 2 0 1 6 2 1 1 6 2 2 1 6 2 3 1 6 2 4 1 6 2 5 1 6 2 6 1 6 2 7 1 6 2 8 1 6 2 9 1 6 3 0 1 6 3 1 1 6 3 2 1 6 3 ...```

5   Fail