2 shunfurh shunfurh 于 2017.09.20 10:19 提问

Ugly Numbers

Description

Ugly numbers are numbers whose only prime factors are 2, 3 or 5. The sequence
1, 2, 3, 4, 5, 6, 8, 9, 10, 12, ...
shows the first 10 ugly numbers. By convention, 1 is included.
Given the integer n,write a program to find and print the n'th ugly number.
Input

Each line of the input contains a postisive integer n (n <= 1500).Input is terminated by a line with n=0.
Output

For each line, output the n’th ugly number .:Don’t deal with the line with n=0.
Sample Input

1
2
9
0
Sample Output

1
2
10

1个回答

caozhy
caozhy   Ds   Rxr 2017.10.05 09:30
已采纳
Csdn user default icon
上传中...
上传图片
插入图片