백준 2798번: 블랙잭 [브루트포스][BP] - Java

www.acmicpc.net/problem/2798

2798번: 블랙잭

 

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

public class Main {

	public static int[] arr;
	public static int N,M, ans=0;
	public static void main(String[] args) throws IOException {

	//System.setIn(new FileInputStream("input.txt"));
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		
		StringTokenizer st = new StringTokenizer(br.readLine());
		N = Integer.parseInt(st.nextToken());
		M = Integer.parseInt(st.nextToken());
		
		st = new StringTokenizer(br.readLine());
		arr = new int[N];
		for (int i = 0; i < N; i++) {
			arr[i] = Integer.parseInt(st.nextToken());
		}
		
		for (int i = 0; i < arr.length; i++) {
			for (int j = 0; j < arr.length; j++) {
				for (int k = 0; k < arr.length; k++) {
					if(i!=j && j!=k && i!=k) {
						int sum = arr[i]+arr[j]+arr[k];
						if(sum<=M)
							ans = Math.max(ans, sum);
					}
				}
			}
		}
		System.out.println(ans);

	}

}