[SWEA] 새샘이의 7-3-5 게임

 

 

[문제]

https://swexpertacademy.com/main/code/problem/problemDetail.do?contestProbId=AWZ2IErKCwUDFAUQ

SW Expert Academy

 

 

 

[소스 코드]

import java.io.*;
import java.util.*;
public class Solution {
	static int[] arr;
	static boolean[] visit;
	static List<Integer> list;
	public static void main(String[] args) throws IOException{
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		StringTokenizer st;
		int T = Integer.parseInt(br.readLine());
		for(int tc=1;tc<=T;tc++) {
			st = new StringTokenizer(br.readLine());
			arr = new int[7];
			for(int i=0;i<7;i++) {
				arr[i] = Integer.parseInt(st.nextToken());
			}
			list = new ArrayList<>();
			visit = new boolean[7];
			make(0,0,0);
			Collections.sort(list,(a,b) -> b-a);
			System.out.println("#"+tc+" "+list.get(4));
		}
	}
	private static void make(int idx,int cnt,int sum) {
		if(cnt==3) {
			if(!list.contains(sum)) {
				list.add(sum);
			}
			return;
		}
		for(int i=idx;i<7;i++) {
			if(!visit[i]) {
				visit[i] = true;
				make(i+1,cnt+1,sum+arr[i]);
				visit[i] = false;
			}
		}
	}
}