FACTMULN - Product of factorials (easy)
For n positive integer, let F(n) = 1! × 2! × 3! × 4! × ... × n!, product of factorial(i) for i in [1..n]. Let G(n) = {i in [1..n], such that n divides F(i)}. It is obvious that n belongs to G(n) that makes it a non empty set.
Input
The first line of input contains an integer T, the number of test cases. On each of the next T lines, your are given an integer n.
Output
For each test case, you have to print min(G(n)).
Example
Input: 3 4 5 6 Output: 3 5 3
Explanation
For test case #1: F(1) = 1! = 1 , not divisible by 4 F(2) = 1! × 2! = 2 , not divisible by 4 F(3) = 1! × 2! × 3! = 12 , divisible by 4 F(4) = 1! × 2! × 3! × 4! = 288 , divisible by 4 So G(4) = {3, 4}.
Constraints
0 < T < 10^4 0 < n < 10^9
A little kB of Python code can get AC in half the time limit. (Edit 2017-02-11, after the compiler changes.) Input is not randomly chosen ;-) Have fun.
hide comments
Vipul Srivastava:
2016-12-18 14:50:32
Lovely question..!! |
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aishik_pyne:
2015-09-19 10:49:45
soln id:15160697
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varun bumb:
2015-07-25 23:13:59
Nice problem! |
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:.Mohib.::
2015-05-26 16:46:47
Finally done...!! Awsm problem....!!
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Soma:
2015-01-15 09:03:12
@Francky can you please check where my code is giving WA.. my submission ID=13431072
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Mayank Poply:
2014-12-28 21:06:09
@Francky - Can u give me a test case for which my code fails?I am getting WA Submission ID - 13293486
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Francky:
2014-11-22 10:28:27
@Shanmukh : your assert is wrong, you have always 0 < n < 10^9 in the input file. Last edit: 2014-11-22 10:29:55 |
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:(:
2014-11-22 06:13:48
Range of n is more than 10^9 ... Make your code for entire int range. Got 9 WA's due to unclear range :( . Finally AC :D Last edit: 2014-11-22 08:53:55 |
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Sandeep Singh:
2014-08-28 23:17:19
Finally solve it , there are some corner(difficult) cases :) Last edit: 2014-08-28 23:18:37 |
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Shark:
2014-08-27 21:49:38
submission id : 12248287. @francky plz look thru my code n tell if most of cases are wrong or just some edge cases. Last edit: 2014-08-27 21:50:12 |
Added by: | Francky |
Date: | 2014-03-01 |
Time limit: | 1.659s |
Source limit: | 50000B |
Memory limit: | 1536MB |
Cluster: | Cube (Intel G860) |
Languages: | All except: ASM64 |
Resource: | Own Problem |