HackerRank_SockMerchant

//Sock Merchant
#include <iostream>
using namespace std;
int main()
{
    int n, g, s[111], tmp, ats=0;
    cin >> n;
    for(int i=0;i<n;i++)
    {
        cin >> s[i];
    }
    for(int i=0;i<n;i++)
    {
        for(int y=0;y<n-1;y++)
        {
            if(s[y]>s[y+1])
            {
                tmp = s[y];
                s[y] = s[y+1];
                s[y+1] = tmp;
            }
        }
    }
    g=n/2;
    for(int i=0;i<n;i++)
    {
        if(s[i]==s[i+1])
        {
            ats++;
            i++;
        }
    }
    cout << ats;
    return 0;
}