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HDEVIL - Alia and Handsome Devil |
Alia has been assigned a homework by her maths teacher to find the "Handsome" numbers. She is confused about these numbers, as we all know that she is very "intelligent" :P
So she needs your help. Following is an exact line that her teacher has given about Handsome numbers : "Handsome number can be defined as a number such that sum of all the proper divisors of handsome number with modulus to m, has to be a devil number. This Devil number is a number whose total number of proper divisors, is a Fibonacci number (0, 1, 1, 2, 3, 5 ...)."
Note: Alia's lucky number is 1, so she assumes 1 as a proper divisor always :P
Input
First line of input is t (number of test cases) then next each t lines will contain two integers n (number that is to be checked), m.
Output
Print in a each output line Case number and "YES." if a number is a handsome number otherwise "NO.". (with a dot)
Case_#i_:_YES.
Case_#j_:_NO.
Here, '_' refers to a single space.
Constraints
t ≤ 100
2 ≤ n ≤ 109
1 ≤ m ≤ 108
Example
Input: 2 6 5 100 45 Output: Case #1 : YES. Case #2 : YES.
Explanation
Case #1 : proper divisors of 6 are 1, 2, 3 i.e. sum = 6 , taking mod with 5, i.e. 1. Now number of proper divisors of 1 is a Fibonacci number.
Added by: | pranjuldb |
Date: | 2014-09-09 |
Time limit: | 0.5s |
Source limit: | 50000B |
Memory limit: | 1536MB |
Cluster: | Cube (Intel G860) |
Languages: | All except: ASM64 |
Resource: | Own problem from Codehurdle |
hide comments
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2016-12-23 17:31:05
simple good for beginners |
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2016-05-26 18:06:59 Siddharth Singh
Brute Force+STL <3 |
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2016-03-24 15:36:29
A very good adhoc / brute force problem.. :) |
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2016-01-02 21:37:54 Akshit Johry
thanks scyth3r :) |
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2015-08-02 13:03:56 ANIKET
@pranjuldb why my code is not getting accepted |
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2015-07-14 15:37:03 :.Mohib.:
@vagesh you should use spoj toolkit link for this prob: http://www.spojtoolkit.com/test/HDEVIL I think you should try this one. 1 1 101 Last edit: 2015-07-14 16:15:23 |
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2015-07-14 15:34:09
@mohib can u plz suggest me some good test cases i m getting wrong answers edit: thanx... Last edit: 2015-07-22 07:52:34 |
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2015-07-14 15:07:06 :.Mohib.:
AC in 0.00 :/ ..Constraints should be more tight.... |
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2015-07-14 13:52:30 scyth3r
pre-compute the Fibonacci numbers up to at most 15 terms..... bcoz maximum value of Devil number will be 10^8-1 and total number of proper divisors for any number in range (1,10^8-1) will be less than 377, 15th Fibonacci number Edit : For the given test cases simply compute up to 89!! :D:D Last edit: 2015-07-14 13:57:08 |
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2015-06-28 09:11:44 Ankit Sultana
Watch out for the period in the output |