#AT1086. B - Varied
B - Varied
当前没有测试数据。
B - Varied
Score : $200$ points
Problem Statement
You are given a string $S$ consisting of lowercase English letters. Determine whether all the characters in $S$ are different.
Constraints
- $2 ≤ |S| ≤ 26$, where $|S|$ denotes the length of $S$.
- $S$ consists of lowercase English letters.
Input
Input is given from Standard Input in the following format:
Output
If all the characters in $S$ are different, print yes
(case-sensitive); otherwise, print no
.
uncopyrightable
yes
different
no
no
yes