tex-projects/LaTeX-examples
2
0
Fork 0
mirror of https://github.com/MartinThoma/LaTeX-examples.git synced 2025-04-26 06:48:04 +02:00
Code Activity

misc

Browse source
This commit is contained in:
Martin Thoma 2014-03-24 23:25:10 +01:00
parent 1cc20da665
commit b18561fc54
19 changed files with 197 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

27
documents/Programmierparadigmen/scripts/java/SieveOfErasthostenes.java Normal file
View file

@ -0,0 +1,27 @@
import java.util.Arrays;
public class SieveOfErasthostenes {
public static boolean[] sieveIt(int n) {
boolean[] sieve = new boolean[n+1];
Arrays.fill(sieve, true);
sieve[0] = false;
sieve[1] = false;
for (int i=2; i <= Math.sqrt(n); i++) {
if (sieve[i]) {
for (int c = i*i; c <= n; c += i) {
sieve[c] = false;
}
}
}
return sieve;
}
public static void main(String[] args) {
final int n = 100_000_000;
final long startTime = System.currentTimeMillis();
sieveIt(n);
final long endTime = System.currentTimeMillis();
System.out.println(endTime-startTime);
}
}