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Use stepped range.

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This commit is contained in:
Stephen Chung 2020-05-03 22:12:10 +08:00
parent d83b829810
commit 68732a6e47
1 changed files with 8 additions and 9 deletions
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9
scripts/primes.rhai
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@ -13,18 +13,17 @@ prime_mask[1] = false;
let total_primes_found = 0;
for p in range(2, MAX_NUMBER_TO_CHECK) {
if prime_mask[p] {
if !prime_mask[p] { continue; }
print(p);
total_primes_found += 1;
let i = 2 * p;
while i < MAX_NUMBER_TO_CHECK {
for i in range(2 * p, MAX_NUMBER_TO_CHECK, p) {
prime_mask[i] = false;
i += p;
}
}
}
print("Total " + total_primes_found + " primes.");
print("Total " + total_primes_found + " primes <= " + MAX_NUMBER_TO_CHECK);
print("Run time = " + now.elapsed() + " seconds.");