2591：Set Definition

题目描述

Set S is defined as follows:
(1) 1 is in S;
(2) If x is in S, then 2x + 1 and 3x + 1 are also in S;
(3) No other element belongs to S.

Find the N-th element of set S, if we sort the elements in S by increasing order.

输入解释

Input will contain several test cases; each contains a single positive integer N (1 <= N <= 10000000), which has been described above.

输出解释

For each test case, output the corresponding element in S.

输入样例

100
254

输出样例

418
1461

该题目是Virtual Judge题目，来自北京大学POJ

题目来源 POJ Monthly--2005.08.28,Static

源链接： POJ-2591

最后修改于 2020-10-29T06:36:34+00:00 由爬虫自动更新

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通过率 --%

时间上限	内存上限
1000	65536