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PRIME1 - Prime Generator |
Peter wants to generate some prime numbers for his cryptosystem. Help him! Your task is to generate all prime numbers between two given numbers!
Input
The input begins with the number t of test cases in a single line (t<=10). In each of the next t lines there are two numbers m and n (1 <= m <= n <= 1000000000, n-m<=100000) separated by a space.
Output
For every test case print all prime numbers p such that m <= p <= n, one number per line, test cases separated by an empty line.
Example
Input: 2 1 10 3 5 Output: 2 3 5 7 3 5Warning: large Input/Output data, be careful with certain languages (though most should be OK if the algorithm is well designed)
Information
After cluster change, please consider PRINT as a more challenging problem.| Added by: | Adam Dzedzej |
| Date: | 2004-05-01 |
| Time limit: | 6s |
| Source limit: | 50000B |
| Memory limit: | 1536MB |
| Cluster: | Cube (Intel G860) |
| Languages: | All except: NODEJS PERL6 |
hide comments
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2013-08-22 08:31:48 Mateusz
I believe I have some problems with input and output, as my solution passes all tests which I can only imagine on ideone... <snip> Last edit: 2022-06-19 12:30:40 |
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2013-08-22 02:19:47 Andrey K
haha I have realized, to solve this quickly, you have to avoid O(n^2) Just make sure you avoid same calculations twice :-D |
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2013-08-21 21:57:49 Mateusz
yhm... I implemented solution in Ruby and it passes all test cases which I created however it shows Wrong Answer when I submit it to SPOJ. here is code and some tests on ideone: <snip> If someone could suggest what could be wrong. Last edit: 2022-06-19 12:32:37 |
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2013-08-13 14:35:32 Kishlay Raj
vids u dont need to use sqrt u can simply campare it like i*i<n instead of i<sqrt(n) |
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2013-08-11 07:04:28 do_do
what is time limit exceeded?plz help |
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2013-08-09 22:18:58 Sushil
getting NZEC error using java ..help or any hints |
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2013-08-08 12:21:06 John and the cows
AC at first attempt :) Last edit: 2013-08-08 13:55:18 |
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2013-08-07 19:06:59 Kishlay Raj
i hav used sieve but it giving worng and can any1 give me a good test case to check with |
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2013-08-07 16:26:36 Bohdan Taraba
i think i have some problem with input or output. My algorithm is working fine but i have still wrong answer. Which way is correct implementation of input in C/C++ ? |
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2013-08-02 11:49:48 AMIT KUMAR MAURYA
got the answer!!! thumbs up |
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