제출 #282681

#제출 시각아이디문제언어결과실행 시간메모리
282681medmdgArranging Shoes (IOI19_shoes)C++14
0 / 100
0 ms256 KiB
#include <bits/stdc++.h> using namespace std; long long count_swaps(std::vector<int> S){ long long int ans=S.size()/2; return (ans*(ans+1))/2; }
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