Problem 1162. Happy 2013...

Solution 967251

Submitted on 14 Sep 2016 by Vishal

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Test	Status	Code Input and Output
1	Pass	start=1000; finish=1023; y_correct = 1; assert(isequal(diff_digits(start,finish),y_correct))
2	Pass	start=1000; finish=9999; y_correct = 4536; assert(isequal(diff_digits(start,finish),y_correct))
3	Pass	start=1234; finish=5678; y_correct = 2273; assert(isequal(diff_digits(start,finish),y_correct))
4	Pass	assert(isequal(diff_digits(4321,6789),1210))
5	Pass	assert(isequal(diff_digits(1988,2012),0))