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Marina's solution for 400: Square Count, written in Java
import java.io.*; import java.util.*; public class SquareCount { static boolean deliv(int n){ int k=2; Integer L=new Integer(n); double d=L.doubleValue(); d=Math.sqrt(d); while(k<=d){ if (n % k==0) n/=k; if (n % k==0) return true; k++; } return false; } public int pos(int N){ int k=0;// ima 0 broevi koi ne se dellivi int pos=1; while(k<N){ if(!deliv(pos))k++; pos++; } pos--; return pos; } }