SPCM - Gopu and function
Once Gopu was reading a maths problem which had a weird looking function f as follows.
{
1, if n is a prime number.
f(n) = f (sum of prime divisors of n) + number of distinct prime divisors of n, otherwise.
}
Compute f (n) for a given value of n.
Input
First line contains T : number of test cases. (1 <= T <= 20)
For each test case, there is a single line containing integer n. (2 <= n <= 10^12).
Output
For each test case, output value of f (n) in a single line.
Example
Input: 6
2
3
4
5
20
123456
Output:
1
1
2
1
3
6
hide comments
Vamsi Krishna Avula:
2014-12-29 06:23:25
memoization made no difference :/
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[Lakshman]:
2014-04-14 17:22:42
@ivar try this
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Mitch Schwartz:
2014-01-14 19:47:38
Note that we are counting distinct prime divisors, based on the example and also the fact that f(4) would be undefined otherwise. :p Last edit: 2014-01-14 13:53:50 |
Added by: | praveen123 |
Date: | 2013-12-23 |
Time limit: | 1s |
Source limit: | 50000B |
Memory limit: | 1536MB |
Cluster: | Cube (Intel G860) |
Languages: | All except: ASM64 |
Resource: | IITK ACA CSE online judge |