Description: Description of laquo:
Given a natural number of n, the number of the half set(n) can be generated by n starting from n.
(1) n ∈ set (n);
(2) add a natural number to the left of n, but the natural number cannot exceed half of the recent additions;
(3) follow this rule until no more natural Numbers can be added.
For example, set(6)={6,16,26, 26,36, 36, 136}. Half set(6) has six elements.
Notice that half of the episodes are not multiple sets. The elements already in the collection are no longer added to the collection.
« programming tasks:
For a given natural number n, the number of elements in half set(n) is calculated.
« data input:
The input data is provided by a text file called input.txt.
Each file only has 1 row and gives an integer n. (0 & lt; N< 201).
« result output:
At the end of the program run, the result is output to the file output.txt. The output file is only 1 row and 1/2
The number of elements in set (n).
An example of the input file example output file
Input. TXT output. TXT
6 6
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