小于n的最大数字

Posted 2022-11-26 lyz_fish

# encoding: utf-8
# a = input("please input a number:")
# print("hello world")

def find_max(n,A:list):
    every_bit,answer = list(),list()
    counter,tem_out_n = 1,n
    while tem_out_n != 0:
        tem_last = tem_out_n%10
        tem_out_n //=  10
        every_bit.append(tem_last)
        counter += 1
    # every_bit
    print('counter\\t',counter)
    print(every_bit)
    for index,n_bit in enumerate(reversed(every_bit)):
        temp_bit = A[0]
        # answer.append(temp_bit)
        for a_id,a in enumerate(A):
            if a> temp_bit and a==n_bit and  a_id != 0:
                temp_bit = a
                # answer.pop()
                # answer.append(temp_bit)
            if a> temp_bit and a<n_bit and a_id != 0:
                answer.append(a)
                for _ in range(counter-index-1):
                    answer.append(max(A))
                return answer
        answer.append(temp_bit)    
    return answer
            
if __name__ == '__main__':
    print(find_max(23121,[2,4,9]))