CodeSprout 官方2026/10/04 00:19

官方解答 · 置頂Java

官方解答｜匯入紀錄復原

CodeSprout 官方解答 · 題意分析、解題步驟與完整參考程式

import java.util.*;

public class Solution {
    private static int aggregate(List<Integer> values) {
        int answer = 0;
        for (int i = 0; i < values.size(); i++)
            answer += (i % 2 == 0 ? values.get(i) : -values.get(i));
        return answer;
    }

    public static int solve(String[] texts) {
        List<Integer> values = new ArrayList<>();
        for (String text : texts) {
            try {
                int x = Integer.parseInt(text.trim(),10);
                if (!(x >= -10 && x <= 10)) throw new IllegalArgumentException();
                values.add(x);
            } catch (IllegalArgumentException error) {
                values.clear();
            }
        }
        return aggregate(values);
    }
}