该代码 RE. for _ in range(int(input())): n = int(input()) a = list(map(int, input().split())) if n == 1: print('Dog' if a[0] < 2 or a[0] & 1 else 'Cat') continue if n == 2: a.sort() if a[0] == 0 and a[1] == 1: print("Dog") ...