I've got WA everytime on PRIME1.But I've tested my output for first 10^6 primes and it is correct.I've using a double sieve algorithm.
SOLVED
I think I've error in output formatting. Can you help me with it?
Try this testcase:
1 99901 99901
Fixed it, but still got WA.
I've used this test case:
And looks like everything is fine, but it runs about 1 second before WA on spoj.
Obviously there is a problem in answer, not code errors, because if I catch all exceptions and then exit(100500) if one is catched I still got WA, not NZEC
Another one:
1 10037940 10037942
Thanks!