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, nm<=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.hide comments
trongtd1973:
20180619 04:27:16
Accepted. C compiler. The essential thing we should do is to stop the checking when it have the very first measure


trongtd1973:
20180619 04:03:33
@bluenokia: I think, in "check prime" funtion u should stop checking when k%i==0, It's the main proplem ;) 

bluenokia:
20180616 06:20:06
Need help. I think my code is pretty efficient, still getting TLE. I have used 6n+1 or 6n1 method instead of the Sieves. Here's the code :: https://ideone.com/y1L9PK Last edit: 20180616 06:22:02 

milw0rm_007:
20180614 10:36:35
Time limit exceeding in Java... How to get through this?


ajayc1007:
20180612 17:46:19
Check divisibility by 6n+1 and 6n1. Then try !


s0leno1d:
20180611 20:08:59
For those troubled with the sieve...


chinki1234:
20180611 12:39:13
how to deal with "time limit exceeded"?


andres_97:
20180602 18:50:48
not it's necesary sieve erastothenes AC one go Time 3.6 s in c++ Last edit: 20180602 18:51:25 

ankit1w:
20180601 06:46:02
What is wrong with my code?


sillypie:
20180526 22:48:16
i am using segmented sieve and having TLE. please help! 
Added by:  Adam Dzedzej 
Date:  20040501 
Time limit:  6s 
Source limit:  50000B 
Memory limit:  1536MB 
Cluster:  Cube (Intel G860) 
Languages:  All except: NODEJS PERL6 