Question 2
The following number:
$$123456789101112131415\cdots444424444344444$$
is made up by writing all the integers from 1 to 44444 consecutively in increasing order from left to right.
How many times does the string “2024” appear in the given number?
Paper instruction: Give a full solution.
$$123456789101112131415\cdots444424444344444$$
is made up by writing all the integers from 1 to 44444 consecutively in increasing order from left to right.
How many times does the string “2024” appear in the given number?
Paper instruction: Give a full solution.