| # | 제출 시각 | 아이디 | 문제 | 언어 | 결과 | 실행 시간 | 메모리 |
|---|---|---|---|---|---|---|---|
| 1138850 | Aliyyiakbar | Arranging Shoes (IOI19_shoes) | C++20 | 14 ms | 1864 KiB |
#include "shoes.h"
#include "bits/stdc++.h"
using namespace std;
long long count_swaps(vector<int> v)
{
long long n = v.size();
n /= 2LL;
return 1LL * n * (n - 1) / 2LL;
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