greedyselector.java

《算法设计与分析》王晓东编著

public class GreedySelector {

	public static int greedySelector(int[] s, int[] f,boolean[] a)
	{
		int n=s.length-1;
		a[1]=true;
		int j=1;
		int count=1;
		for (int i=2;i<=n;i++) {
			if (s[i]>=f[j]) {
				a[i]=true;
				j=i;
				count++;
			}
			else a[i]=false;
		}
		return count;
	}
	
	public static void main(String[] args)
	{
		int[] s=new int[]{1,3,0,5,3,5,6,8,8,2,12};
		int[] f=new int[]{4,5,6,7,8,9,10,11,12,13,14};
		boolean[] a=new boolean[s.length];
		System.out.println("Max="+greedySelector(s,f,a));
		for (int i=0;i<a.length;i++)
			if (a[i]) System.out.print(i+1+" ");		
	}
}