제출 #312461

#제출 시각아이디문제언어결과실행 시간메모리
312461NaynaArranging Shoes (IOI19_shoes)C++14
15 / 100
37 ms3192 KiB
#include "shoes.h" using namespace std; typedef long long ll; long long count_swaps(vector<int> s) { ll n = s.size()/2; ll ans = (n*(n-1))/2; return ans; }
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