제출 #654807

#제출 시각아이디문제언어결과실행 시간메모리
654807atigunArranging Shoes (IOI19_shoes)C++14
15 / 100
21 ms3124 KiB
#include<bits/stdc++.h>
#include"shoes.h"

using namespace std;
typedef long long ll;

ll count_swaps(vector<int> S){
  int N = S.size()/2;
  return (N-1)*1ll*(N)/2;
}
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