python Python：map，input，range，zip，sum，len：Mapping和Zipping Student Grades

Posted 2021-05-09

if __name__ == '__main__':
    N, X = map(int, input().split())
    marks = []

    for _ in range(X):
        marks.append(map(float, input().split()))

    for i in zip(*marks):
        print(sum(i)/len(i))