AtCoder Beginner Contest 157
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Problem Statement
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Takahashi wants to print a document with $N$ pages double-sided, where two pages of data can be printed on one sheet of paper.
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At least how many sheets of paper does he need?
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Constraints
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$N$is an integer.$1 \leq N \leq 100$
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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 answer.
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样例
Input #1
5
Output #1
3
By printing the $1$-st, $2$-nd pages on the $1$-st sheet, $3$-rd and $4$-th pages on the $2$-nd sheet, and $5$-th page on the $3$-rd sheet, we can print all the data on $3$ sheets of paper.
Input #2
2
Output #2
1
Input #3
100
Output #3
50
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。