No.2322 MMA String
レベル :
/ AI推定難易度 : 77
/ 実行時間制限 : 1ケース 2.000秒 / メモリ制限
: 512 MB / 標準ジャッジ問題
タグ : / 解いたユーザー数 329
作問者 :
Nafmo2
/ テスター :
tyawanmusi
hikikomori
sepa38
タグ : / 解いたユーザー数 329
作問者 :
hikikomori
sepa38
問題文最終更新日: 2023-05-17 04:03:22
English (AI translation)
This statement was translated by AI (claude-opus-5-5, effort medium) and may contain errors or differ in nuance from the original. The original statement takes precedence.
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MMA Contest 015
(順位表)
の他の問題:
Problem Statement
An MMA string is a string of $3$ characters that consists of $2$ kinds of letters and whose $1$st and $2$nd characters are the same.
You are given a string $S$ consisting of $3$ uppercase letters.
Print Yes if it is an MMA string, and No otherwise.
Input
$S$
- $|S|=3$
- All characters in $S$ are uppercase letters.
Output
Print Yes if $S$ is an MMA string, and No otherwise.
Sample
Sample 1
Input
MMA
Output
Yes
It consists of $2$ kinds of letters, M and A, and its $1$st and $2$nd characters are equal, so it is an MMA string.
Sample 2
Input
UEC
Output
No
It consists of $3$ kinds of letters, U, E, and C, so it does not qualify.
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