题解 | #记票统计#
记票统计
http://www.nowcoder.com/practice/3350d379a5d44054b219de7af6708894
字典生成式多用用
num1 = input()
list1 = input().split(' ')
num2 = input()
list2 = input().split(' ')
data = {key:0 for key in list1}
data['Invalid'] = 0
for i in list2:
if i in data.keys():
data[i] += 1
else:
data['Invalid'] += 1
for key,values in data.items():
print('{0} : {1}'.format(key, values))
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