def min_operations_to_good_string(s: str) -> int:
    zeros = 0
    ones = 0
    res = 0

    for c in s:
        if c == '0':
            zeros += 1
        else:
            ones += 1
        if zeros > ones:
            res += 1
            zeros -= 1  # 0 を 1 に変えたとみなす
            ones += 1
    return res