I-The Crime-solving Plan of Groundhog

python 继续nb

t = int(input())
for ts in range(0, t):
    n = int(input())
    data = list(map(int, input().split()))
    data = sorted(data)
    l = 0
    for i in range(0, n):
        if data[i] != 0:
            l = i
            break
    a = data[l]
    b = data[l + 1]
    data[l + 1] = 100
    data[l] = 100
    b = int(str(b) + ''.join([str(item) for item in data if item != 100]))
    print(a * b)