为什么此代码未返回变量中存在的最大值？

Question

if __name__ == '__main__':
    n = int(input())
    arr = map(int, input().split())

    a = max(arr)
    print(a)

sample input:

5

45566

output:

6

This code is not returning the maximum value present in variable.

Answer 1

If you want tread number 45566 as five numbers 4,5,5,6,6 then you need list(arr) instead of arr.split()

If you split code to simpler lines then you can use print() to see where is the problem.

if __name__ == '__main__':

    n = int(input())
    
    arr = input()
    #print('input:', arr)
    
    #arr = arr.split()
    #print('split:', arr)

    arr = list(arr)
    print('list:', arr)
    
    arr = map(int, arr)
    print('map(int):', arr)

    a = max(arr)
    print(a)