组成数字
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在C++中，将给定的四个数字组成的第n个数字的位数
We need to find the number of digits in the nth number made of given four digits 1, 2, 3, and 4. The series with the above four digits is as follows 1…
We need to find the number of digits in the nth number made of given four digits 1, 2, 3, and 4. The series with the above four digits is as follows 1…
