제출 #1334663

#제출 시각아이디문제언어결과실행 시간메모리
1334663sporknivesArranging Shoes (IOI19_shoes)C++20
0 / 100
12 ms1960 KiB
#include <bits/stdc++.h>
#include "shoes.h"
using namespace std;
typedef long long ll;

long long count_swaps(std::vector<int> s) {
	int n = s.size()/2;
	return n*(n-1)/2;
}
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