Submission #285668

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
285668	2020-08-29 11:54:59	Otaku619	Arranging Shoes (IOI19_shoes)	C++14	10 / 100	1076 ms	3064 KiB

shoes

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#include <bits/stdc++.h>
using namespace std;
long long count_swaps(vector<int> v)
{
    int n = v.size();
    long long swa = 0;
    for (int i = 0; i < 2 * n; i += 2)
    {
        for (int j = i + 1; j < 2 * n; j++)
        {
            if (abs(v[j]) == abs(v[i]))
            {
                for (int k = j; k > i + 1; k--)
                    swap(v[k], v[k - 1]);
                swa += (j - 1 - i);
                if (v[i + 1] < 0)
                {
                    swap(v[i], v[i + 1]);
                    swa++;
                }
                break;
            }
        }
    }
    return swa;
}
 
 
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