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PKU v. THU (Preliminary Round 2)
There is an ongoing server maintenance. The service may be unstable in the next a few hours.
Time Limit: 5 s
Memory Limit: 1024 MB
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XXI Open Cup named after E.V. Pankratiev. Grand Prix of Korea
C. Economic One-way Roads
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源文件:answer
Language
C++ 98
C++ 11
C++ 14
C++ 17
C++ 20
C++ 23
C 89
C 99
C 11
D
Python 3
Java 8
Java 11
Pascal
Rust
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源文件:answer
Language
C++ 98
C++ 11
C++ 14
C++ 17
C++ 20
C++ 23
C 89
C 99
C 11
D
Python 3
Java 8
Java 11
Pascal
Rust
Upload by editor
Upload from local
use advanced editor
Browse
文本文件:input.txt
Upload by editor
Upload from local
use advanced editor
Browse
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