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back to boarda bit incorrect task Posted by Grab 10 Feb 2006 12:06 In the task of problem #1118 the triviality(1) was not defined.
test #4 has 1 as i.
after putting triviality(1) be equal to 0, i've gotten AC.
So, in my opinion, this moment should be fixed in the task.
P.S.
sorry for my bad English Re: a bit incorrect task Yes I agree with you. Problem definition is unclear. Re: a bit incorrect task Citation from problem statement: Recall that a proper divisor of a natural number is the divisor that is strictly less than the number. So, 1 has no proper divisors and its sum equals to 0. Hence, triviality of 1 equals to 0. Re: a bit incorrect task Posted by Grab 10 Feb 2006 19:59 Citation from problem statement: Recall that a proper divisor of a natural number is the divisor that is strictly less than the number. So, 1 has no proper divisors and its sum equals to 0. Hence, triviality of 1 equals to 0. Sorry, but I do not agree with you. 0 is less then 1, but it is not its divisor. So, we have a sutuation: there's NO divisor (that's why the sum is not 0, but it doesn't exist), strictly the function doesn't have any value at 1 (т.е. функция не определена в точке 1), but nil is a number and the condition Triv(1)=0 means it has it! that what wanted to say. P.S. sorry for using Russian, but I really do not know how to explain my think in English Edited by author 10.02.2006 20:00 Edited by author 10.02.2006 20:20Re: a bit incorrect task In maths the sum of empty set of numbers is traditionally considered to be equal to zero. |
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