cf/mirror

Dominoes

CF
267B2000· candidate master1s256 MB⌨ stdin/stdout

Examples

Sample 1of 1
Input
5
1 2
2 4
2 4
6 4
2 1
Output
2 -
1 -
5 -
3 +
4 -
267B.cpp
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Ln 11·137 BGNU C++20 (64)
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