[BOJ] 8465 스티커 (JAVA)

https://www.acmicpc.net/problem/9465

9465번: 스티커

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

public class Main {
	
    static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    static StringBuilder sb = new StringBuilder();
    static StringTokenizer st;
    static int T, N;
    static int[][] input, dp;

    public static void main(String[] args) throws Exception {

        T = Integer.parseInt(br.readLine());
        for (int tc = 0; tc < T; tc++) {

            N = Integer.parseInt(br.readLine());
            input = new int[2][N + 1];
            dp = new int[2][N + 1];
            for (int i = 0; i < 2; i++) {
                st = new StringTokenizer(br.readLine(), " ");
                for (int j = 1; j <= N; j++) {
                    input[i][j] = Integer.parseInt(st.nextToken());
                }
            } // end of input

            dp[0][1] = input[0][1];
            dp[1][1] = input[1][1];

            for (int i = 2; i <= N; i++) {
                dp[0][i] = Math.max(Math.max(dp[0][i - 1], dp[0][i - 2] + input[0][i]), Math.max(dp[1][i - 1] + input[0][i], dp[1][i - 2] + input[0][i]));
                dp[1][i] = Math.max(Math.max(dp[1][i - 1], dp[1][i - 2] + input[1][i]), Math.max(dp[0][i - 1] + input[1][i], dp[0][i - 2] + input[1][i]));
            }

            sb.append(Math.max(dp[0][N], dp[1][N])).append("\n");

        }

        System.out.print(sb);

    }
	
}