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
Loki:
20130313 22:12:29
Yes indeed! It is a segmented sieve 

Loki:
20130313 22:12:29
This is a long long program. Last edit: 20111023 20:04:05 

rector george:
20130313 22:12:29
my program receives runtime error(SIGSEGV) even though it runs just fine on my computer(i did it in c using the sieve of eratosthenes with some adjustments),i cannot make a char vector of lenght the upper bond... any ideas... Last edit: 20111004 12:01:51 

:D:
20130313 22:12:29
You should use "sieve of eratosthenes" all the way in your algo. Also how many times are you doing the "find all prime numbers up to root of n". And how many do you actually need? 

Alejandro:
20130313 22:12:29
please put some data sets, and I uploaded many solutions and TLE .... I did the following: find all prime numbers up to root of n, and then compare the results when the range is greater than 1000000 ... 

Jure RatkoviĆ¦:
20130313 22:12:29
@Prakash kumar


Prakash kumar:
20130313 22:12:29
I am new joined here any budy help me. 

Uday Shankar:
20130313 22:12:29
For each number n there is some other number 'x' which is less than n.If you check until that number 'x' it is enough


Aakash Srivastava:
20130313 22:12:29
@uday...then what do you suggest,i`ve run out of options,plz help Last edit: 20110922 05:20:30 

Uday Shankar:
20130313 22:12:29
@Aakash

Added by:  Adam Dzedzej 
Date:  20040501 
Time limit:  6s 
Source limit:  50000B 
Memory limit:  1536MB 
Cluster:  Cube (Intel G860) 
Languages:  All except: NODEJS PERL6 