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The 2nd Universal Cup Finals is coming! Check out our event page, schedule, and competition rules!
Time Limit:
2 s
Memory Limit:
1024 MB
Total points:
100
KOI TST 2021 Day 1
B. 통신망
The problem is available in the following languages:
C++98, C++11, C++14, C++17, C++20, C++23