I didn't completely get 100% on a programming job interview, should I worry?

Programmer Question

I recently had a phone job interview with a 1 hour Programming practical. It had two questions on it and I know I answered one completely correct and got most of the second correct. Should I worry about getting the Job just based on that? The actual phone job interview went very well and they told me that I answered their questions well and my questions I aimed at them were very good questions and some they had not heard before but should have in the past.

so big question is should I worry? or is not 100% completion ok.

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