제출 #826540

#제출 시각아이디문제언어결과실행 시간메모리
826540AlesL0Arranging Shoes (IOI19_shoes)C++17
15 / 100
16 ms3132 KiB
#include <bits/stdc++.h> #include "shoes.h" using namespace std; typedef long long ll; long long count_swaps(std::vector<int> s) { ll n = s.size()/2; return (n*(n-1)/2); }
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