POJ 2661 Factstone Benchmark 스 털 링 (스틸 링 공식) 응용
2700 단어 mark
Factstone Benchmark
Time Limit:1000MS
Memory Limit:65536K
Description
Amtel has announced that it will release a 128-bit computer chip by 2010, a 256-bit computer by 2020, and so on, continuing its strategy of doubling the word-size every ten years. (Amtel released a 64-bit computer in 2000, a 32-bit computer in 1990, a 16-bit computer in 1980, an 8-bit computer in 1970, and a 4-bit computer, its first, in 1960.)
Amtel will use a new benchmark - the Factstone - to advertise the vastly improved capacity of its new chips. The Factstone rating is defined to be the largest integer n such that n! can be represented as an unsigned integer in a computer word.
Given a year 1960 <= y <= 2160, what will be the Factstone rating of Amtel's most recently released chip?
Input
There are several test cases. For each test case, there is one line of input containing y. A line containing 0 follows the last test case.
Output
For each test case, output a line giving the Factstone rating.
Sample Input
1960
1981
0
Sample Output
3
8
, TLE
(Stirling)
스 털 링 (
Stirling
) 공식:
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POJ 2661 Factstone Benchmark 스 털 링 (스틸 링 공식) 응용Factstone Benchmark Time Limit:1000MS Memory Limit:65536K Description Amtel has announced that it will release a 128-bit...
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