Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import java.math.BigInteger;

public class Main {
    public static int getNafWeight(BigInteger k) {
        if (k.signum() == 0) {
            return 0;
        }

        BigInteger _3k = k.shiftLeft(1).add(k);
        BigInteger diff = _3k.xor(k);

        return diff.bitCount();
    }
}