AtCoder Beginner Contest 106
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Problem Statement
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The number $105$ is quite special - it is odd but still it has eight divisors. Now, your task is this: how many odd numbers with exactly eight positive divisors are there between $1$ and $N$ (inclusive)?
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Constraints
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$N$is an integer between$1$and$200$(inclusive).
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Input
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Input is given from Standard Input in the following format:
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N翻译中…
Output
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Print the count.
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样例
Input #1
105
Output #1
1
Among the numbers between $1$ and $105$, the only number that is odd and has exactly eight divisors is $105$.
Input #2
7
Output #2
0
$1$ has one divisor. $3$, $5$ and $7$ are all prime and have two divisors. Thus, there is no number that satisfies the condition.
题目信息
题面与样例版权归 AtCoder 及出题人所有；中文翻译由 AI 生成（CI 管线），如有出入请以原文为准。