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Time Limit: 20 s
Memory Limit: 2048 MB
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# 2891. 狗蛋和二五仔
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The problem was used in the following contest:
2021 清华大学学生程序设计竞赛暨高校邀请赛（THUPC 2021）初赛
Source code:answer
Language
C 99
C 11
C++ 98
C++ 11
C++ 14
C++ 17
C++ 20
C++ 23
C++ 26
D
Go
Haskell
Java 8
Java 11
Java 17
Java 21
Kotlin
Pascal
Python 3
Rust
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Source code:answer
Language
C 99
C 11
C++ 98
C++ 11
C++ 14
C++ 17
C++ 20
C++ 23
C++ 26
D
Go
Haskell
Java 8
Java 11
Java 17
Java 21
Kotlin
Pascal
Python 3
Rust
Upload by editor
Upload from local
use advanced editor
Browse
Text file:input.txt
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use advanced editor
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