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CF
598A
900
· newbie
1s
256 MB
⌨ stdin/stdout
#math
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Sample 1
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2
4
1000000000
Output
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-4
499999998352516354
58%
598A.cpp
GNU C++20 (64)
GNU C11
Python 3
PyPy 3
Java 21
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137 B
GNU C++20 (64)
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