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Ingy döt Net 2013-04-10 23:57:08 -07:00
parent 47bf37c096
commit b83f433714
12433 changed files with 156208 additions and 123 deletions
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12
Task/Primality-by-trial-division/Java/primality-by-trial-division-1.java Normal file
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@ -0,0 +1,12 @@
public static boolean prime(long a){
if(a == 2){
return true;
}else if(a <= 1 || a % 2 == 0){
return false;
}
long max = (long)Math.sqrt(a);
for(long n= 3; n <= max; n+= 2){
if(a % n == 0){ return false; }
}
return true;
}

3
Task/Primality-by-trial-division/Java/primality-by-trial-division-2.java Normal file
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@ -0,0 +1,3 @@
public static boolean prime(int n) {
return !new String(new char[n]).matches(".?|(..+?)\\1+");
}