鸡兔同笼,无脑循环遍历。
import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner x = new Scanner(System.in); int n = x.nextInt(); for (int i = 0; i <= n; i += 1) { if (2 * i + 4 * (n - i) == 80) { System.out.println(i + " " + (n - i)); } } x.close(); } }
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