题解 | 小红的地砖-Java

import java.util.Scanner;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int n = in.nextInt();
        int[] dp = new int[n + 1];
        dp[1] = in.nextInt();
        dp[2]  = in.nextInt();
        for (int i = 3; i <= n; i++) {
            dp[i] = Math.min(dp[i - 1], dp[i - 2]) + in.nextInt();
        }
        System.out.println(dp[n]);
    }
}