题解 | 牛牛的考试

import sys
a = int(input())

lines = []

for i in range(a):
    line_1 = len(str(input().strip()))
    line_2 = len(str(input().strip()))
    line_3 = len(str(input().strip()))
    line_4 = len(str(input().strip()))
    num = [line_1,line_2,line_3,line_4]
    max_num = max(num)
    min_num = min(num)

    if num.count(min_num) == 1 and num.count(max_num) != 1:
        for i in range(4):
            if num[i] == min_num:
                ch = chr( ord('A')+ i )
                lines.append(ch)
    elif num.count(min_num) != 1 and num.count(max_num) == 1:
        for i in range(4):
            if num[i] == max_num:
                ch = chr( ord('A')+ i )
                lines.append(ch)
    else:
        lines.append('C')

for x in lines:
    print(x)