제출 #282342

#제출 시각아이디문제언어결과실행 시간메모리
282342GREGOIRELCArranging Shoes (IOI19_shoes)C++14
15 / 100
31 ms3192 KiB
#include "shoes.h" long long count_swaps(std::vector<int> s) { long long N = (long long)s.size(); N /= 2; long long r = N * (N - 1) / 2; return r; }
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