Задание 24. Пример 2

Python

max_count = 0

with open('24_pr1.txt') as f:
    
    for line in f:

        ch_prev = ''
        temp_max = 1

        for ch in line:

            if ch != ch_prev:
                temp_max += 1
            else:
                if temp_max > max_count:
                    max_count = temp_max
                temp_max = 1

            ch_prev = ch

print(max_count)