题解 | #记负均正II#
记负均正II
https://www.nowcoder.com/practice/64f6f222499c4c94b338e588592b6a62
看到大家题解都没用sys来获取输入，都是用while True加异常来处理，其实不用。
import sys
n_list = [int(line.strip()) for line in sys.stdin ]
negative, positive = [i for i in n_list if i < 0], [i for i in n_list if i > 0]
print(len(negative))
print(f'{sum(positive)/len(positive):.1f}')
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