NYOJ之题目325 zb的生日

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刷一辈子水题...

AC代码：

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {

        Scanner sc=new Scanner(System.in);

        while(sc.hasNextInt()){
            int n=sc.nextInt();
            int x[]=new int[n];
            while(--n>=0) x[n]=sc.nextInt();
            int ans=dfs(x,0,0,0);
            System.out.println(ans);
        }

    }

    public static int dfs(int x[],int index,long s1,long s2){
        if(index==x.length) return (int) Math.abs(s1-s2);
        return Math.min(dfs(x,index+1,s1+x[index],s2), dfs(x,index+1,s1,s2+x[index]));
    }

}

题目来源： http://acm.nyist.net/JudgeOnline/problem.php?pid=325