I implemented a sieve for finding prime numbers between given range by first finding primes up to square root of highest possible number for upperlimit of interval and then for each test case find prime numbers up to required limit.I start marking composite from square of each prime. This gets AC in SPOJ PRIME1( http://www.spoj.com/problems/PRIME1/ ) in 0.07 but gets TLE for PRIME INTERVAL-PRINT. (http://www.spoj.com/problems/PRINT/) How can I improve this?
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