python Python：计算平均分数：输入，范围，分割，列表，地图，总和，浮动，len，打印，格式

Posted 2021-05-09

if __name__ == '__main__':
    n = int(input())
    d = {}
    for _ in range(n):
        info = input().split()
        score = list(map(float, info[1:]))
        d[info[0]] = sum(score) / float(len(score))
    print('{:.2f}'.format(d[input()]))