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BOJ. Two Liquid (2470)

[Link] https://www.acmicpc.net/problem/2470


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import java.util.*;
import java.io.*;

public class Main {
	static BufferedReader br;
	public static void main(String[] args) throws IOException {
		br = new BufferedReader(new InputStreamReader(System.in));
		StringBuilder sb = new StringBuilder();
		int n = toi(br.readLine());
		int[] arr = getArr();
		Arrays.sort(arr);
		int left = 0, right = n - 1, total, lLiq, rLiq, min = Integer.MAX_VALUE;
		lLiq = 0;
		rLiq = n - 1;
		total = arr[left] + arr[right];

		while(left < right) {
			if(Math.abs(total) < Math.abs(min)) {
				min = total;
				lLiq = left;
				rLiq = right;
				if(total == 0) break;
			}
			if(total > 0) total = total - arr[right] + arr[--right];
			else total = total - arr[left] + arr[++left];
		}
		print(arr[lLiq] + " " + arr[rLiq]);
	}

	static int toi(String s) { return Integer.parseInt(s); }
	static String[] getLine() throws IOException { return br.readLine().split(" "); }
	static int[] getArr() throws IOException { return Arrays.stream(br.readLine().split(" ")).mapToInt(Integer::parseInt).toArray(); }
	static <T> void print(T s) { System.out.print(s); }
	static <T> void println(T s) { System.out.println(s); }
}
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