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/*
* ʵÏÖ»ôÄɹæÔòµÄ¶àÏîʽ¼ÆËãʱ¼ä¸´ÔÓ¶ÈΪO(N)
*/
public class HuonaRule {
public static void main(String args[])
{
double data[]=new double[]{1.0,2,2,3,4};
double x=3;
System.out.println(huonaFunction(data,x,data.length));
}
/*
* dataΪ¶àÏîʽµÄϵÊýÊý×飬xΪֵ£¬nΪϵÊýÊý×éµÄ³¤¶È
* Y=a0+a1*X+a2*X^2+.....+an*X^n;
* Y=a0+X(a1+X(a2+X(a3+X(...))))
*/
public static double huonaFunction(double[] data,double x,int n)
{
double y=0;
int i=n-1;
while( i>=0 )
{
y=x*y+data[i];
i--;
}
return y;
}
}
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import java.io.IOException;
import java.io.InputStreamReader;
public class GB2UTF
{
public static String GBK2Unicode(String str)
{
StringBuffer result = new StringBuffer();
for (int i = 0; i < str.length(); i++)
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import java.util.Date;
import java.util.Random;
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