PON - Prime or Not
Given the number, you are to answer the question: "Is it prime?"
Solutions to this problem can be submitted in C, C++, Pascal, Perl, Python, Ruby, Lisp, Hask, Ocaml, Prolog, Whitespace, Brainf**k and Intercal only.
Input
t – the number of test cases, then t test cases follows. [t <= 500]
Each line contains one integer: N [2 <= N <= 2^63-1]
Output
For each test case output string "YES" if given number is prime and "NO" otherwise.
Example
Input: 5 2 3 4 5 6 Output: YES YES NO YES NO
hide comments
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michulo:
2018-06-29 15:29:54
Hey is the cluser much slower then i5 ? it takes 3 sec at my laptop and "time limit exceeded" at spoj. Is it posible ?
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reinomumei:
2018-06-05 17:40:10
first time using Miler Rabin
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chetan4060:
2018-05-25 21:38:16
both miller rabin and fermat's test works but remember for overflow of (a*b)%mod:) |
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vishwanath_26:
2017-10-24 21:12:29
Test cases may contain Carmichael numbers so use Miller Rabin |
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wisdommm:
2017-10-04 09:55:40
You need use both quick_pow and quick_multiply. |
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amulyagaur:
2017-07-25 11:25:37
accepted in 0.02 sec with only 2 iterations in fermat's test |
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musfiq_mridha:
2017-06-17 16:20:38
Is it solvable only using sieve with optimazation? Last edit: 2017-06-17 16:20:53 |
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kspoj:
2017-06-10 09:35:01
Guys, I've tried using Miller Rabin test as suggested, but my code's failing in this test case :
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rohit9934:
2017-05-08 16:02:07
The only thing that can screw you up is overflow WA |
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caohoangtung:
2017-04-01 19:50:06
First time using Miller Rabin :D learnt alot |
| Added by: | Roman Sol |
| Date: | 2005-01-24 |
| Time limit: | 21s |
| Source limit: | 5000B |
| Memory limit: | 1536MB |
| Cluster: | Cube (Intel G860) |
| Languages: | All except: ADA95 ASM32 BASH CSHARP CLPS D ERL FORTRAN ICON JAVA JS-RHINO LUA NEM NICE PHP PIKE ST |
| Resource: | ZCon 2005 |
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