cf/mirror

Less or Equal

CF
977C1200· pupil2s256 MB⌨ stdin/stdout
#sortings

Examples

Sample 1of 2
Input
7 4
3 7 5 1 10 3 20
Output
6
Sample 2of 2
Input
7 2
3 7 5 1 10 3 20
Output
-1
977C.cpp
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Ln 11·137 BGNU C++20 (64)