exam6_6.java

基本的数据结构的java代码

public class Exam6_6{
	public static int comm(int n, int k){
		if(n < 1 || k > n) return 0;
		if(k == 0) return 1;
		if(n == k) return 1;
		return comm(n - 1, k - 1) + comm(n - 1, k);
	}
	
	public static void main(String[] args){
		int n = 5, k = 2, c;
		
		c = comm(n, k);
		System.out.println("c = " + c);
	}
}