Lotion.java

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package senseofsecuritz;
 
import java.io.BufferedReader;
import java.io.InputStreamReader;
 
/**
 *
 * @author istenik3
 */
public class Lotion {
    static public void main(String [] arguments) throws Exception {
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
 
        String line;
        while((line = reader.readLine()) != null) {
            int n = Integer.parseInt(line.substring(2));
 
            System.out.println(solve(n));
        }
    }
 
    static public int solve(long n) {
        int pocet = 0;
        for(long x=(n+1); x<=2*n; x++) {
            long y=(x*n)/(x-n);
            if(right(x, y, n)) {
                pocet++;
            }
        }
        return pocet;
    }
 
    static public boolean right(long x, long y, long n) {
        return ((x*y) / (x+y)) == n;
    }
}