AFS - Amazing Factor Sequence
Bhelu is the classmate of Bablu who made the Amazing Prime Sequence.
He felt jealous of his classmate and decides to make his own sequence. Since he was not very imaginative, he came up with almost the same definition just making a difference in f(n):
- a[0] = a[1] = 0.
- For n > 1, a[n] = a[n - 1] + f(n), where f(n) is the sum of positive integers in the following set S.
- S = {x | x < n and n % x = 0}.
Now, Bablu asked him to make a code to find f(n) as he already had the code of his sequence. So, Bhelu asks for your help since he doesn't know programming. Your task is very simple, just find a[n] for a given value of n (< 10^6).
Input
Your code will be checked for multiple test cases.
First Line of Input contains T (<= 100), the number of test cases.
Next T lines contain a single positive integer N. (1 < N < 10^6).
Output
Single line containing a[n] i.e. n-th number of the sequence for each test case.
Example
Input: 3 3 4 5 Output: 2 5 6
Explanation
f(2) = 1 {1} f(3) = 1 {1} f(4) = 3 {1, 2} f(5) = 1 {1}
hide comments
vedang:
2015-08-04 23:19:19
DO NOT USE INT.
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Piyush Kumar:
2015-05-21 16:49:04
I hate precalculations |
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Ankit Sultana:
2015-04-22 14:12:38
Use long long and make array global Last edit: 2015-04-22 14:12:54 |
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karan:
2015-04-20 21:55:05
easy one :) |
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TIGM:
2014-06-25 13:03:30
a missing 0 resulted in a lot of wrong answer.
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Ouditchya Sinha:
2013-05-14 18:08:13
Finally AC!!! Amazing Problem Indeed. :) |
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[Lakshman]:
2013-03-20 19:53:48
ha..ha..Finally got AC after several TLEs...Enjoyed solving it...
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[Lakshman]:
2013-03-19 13:41:18
I am getting TLE don't know why on ideone code is giving correct output in 0.30 seconds with 100 test cases and max value(1000000)
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(Tjandra Satria Gunawan)(曾毅昆):
2013-03-17 14:38:59
I'm happy because I got AC in 0.00s
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Added by: | c[R]@zY f[R]0G |
Date: | 2013-03-15 |
Time limit: | 1s |
Source limit: | 5000B |
Memory limit: | 1536MB |
Cluster: | Cube (Intel G860) |
Languages: | All except: ASM64 |