https://www.acmicpc.net/problem/1978import java.io.*;import java.util.*;public class Main { static int answer; public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); int n = Integer.parseInt(br.readLine()); StringTokenizer st = new StringTokenizer(br.readLine()); while (n-->0){ ..