第一题 import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); int n = scanner.nextInt(); for(int i = 0;i<n;i++){ int length = scanner.nextInt(); int arr[] = new int[length]; for(int j = 0;j<length;j++){ arr[j] = scanner.nextInt(); } String res = play(arr); System.out.println(res); } } private static String play(int []array){ String result = "NIUMEI"; if(array.length%2!=0) return "NIUNIU"; else { for(int i = 0;(i+1)<array.length;i+=2){ //仅数字成对出现时，输出NIUMEI。 if((array[i]^array[i+1])!=0){ return "NIUNIU"; } } } return result; } } 第二题暴力没过。。。