제출 #911091

#제출 시각아이디문제언어결과실행 시간메모리
911091vjudge1Arranging Shoes (IOI19_shoes)C++17
15 / 100
15 ms3268 KiB
#include <bits/stdc++.h> #include <vector> using namespace std; long long count_swaps(std::vector<int> S){ long long n=S.size()/2; return ((n-1)*n)/2; }
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