제출 #143410

#제출 시각아이디문제언어결과실행 시간메모리
143410gs14004Arranging Shoes (IOI19_shoes)C++17
15 / 100
34 ms1916 KiB
#include "shoes.h" #define sz(v) ((int)(v).size()) long long count_swaps(std::vector<int> s) { int n = sz(s) / 2; return 1ll * n * (n - 1) / 2; }
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