제출 #977971

#제출 시각아이디문제언어결과실행 시간메모리
977971kilkuwuArranging Shoes (IOI19_shoes)C++17
15 / 100
17 ms3264 KiB
#include "shoes.h" #include <bits/stdc++.h> long long count_swaps(std::vector<int> s) { int n = (int) s.size() / 2; return (int64_t) n * (n - 1) / 2; }
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