Computer Science Canada Help with satisfying conditions |
| Author: | implosion [ Sun Sep 27, 2009 3:31 pm ] | ||
| Post subject: | Help with satisfying conditions | ||
Hi there, i just started learning python and i'm having a bit of difficulty. This is purely beginning stuff but i can't seem to understand why the answer isn't correct. Question: Given two variables, is_empty of type bool , indicating whether a class roster is empty or not, and number_of_credits of type integer , containing the number of credits for a class, write an expression that evaluates to True if the class roster is not empty and the class is one or three credits.
i'm using Wing IDE |
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| Author: | DtY [ Sun Sep 27, 2009 3:58 pm ] | ||
| Post subject: | RE:Help with satisfying conditions | ||
Logical and binds higher than logical or, so say you have the expression A and B or C is identical to (A and B) or C Not A and (B or C) So, you need to use brackets to fix the order of operations,
Also, it's not required at all, but when using and/or it's suggested you put brackets around each of the operands. So, (A == B) or (B == C) instead of, A == B or B == C It just makes it look more clear. |
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| Author: | implosion [ Sun Sep 27, 2009 4:08 pm ] |
| Post subject: | RE:Help with satisfying conditions |
oh okay. i see. thank you very much. The only other language i know is Turing. lol |
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