#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include "shoes.h"
#define pb push_back
#define fi first
#define se second
#define mp make_pair
#define all(v) v.begin(), v.end()
using namespace std;
typedef long long LL;
const LL MOD = 1e9 + 7;
const double PI = 2 * acos(0);
using namespace __gnu_pbds;
typedef tree<int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update> new_data_set;
//order_of_key(x) = number of elements stricly smaller than x
//find_by_order(x) = return x-th largest element
bool flag[323232];
queue<int> kiri[121212], kanan[121212];
long long count_swaps(vector<int> s) {
new_data_set tmp;
int n = s.size();
LL ans2 = 0;
vector<int> ans;
for (int i = 0; i < n; i++) {
if (s[i] < 0) kiri[-s[i]].push(i);
else kanan[s[i]].push(i);
}
for (int i = 0; i < n; i++) {
if (!flag[i]) {
if (s[i] < 0) {
int x = -s[i];
ans.pb(i);
flag[i] = 1;
kiri[x].pop();
int xx = kanan[x].front();
ans.pb(xx);
flag[xx] = 1;
kanan[x].pop();
} else {
int x = s[i];
ans.pb(i);
flag[i] = 1;
kanan[x].pop();
int xx = kiri[x].front();
ans.pb(xx);
flag[xx] = 1;
kiri[x].pop();
}
}
}
for (int i = 0; i < n; i += 2) {
if (s[ans[i]] > 0) swap(ans[i], ans[i + 1]);
}
for (int i = 0; i < n; i++) {
int cnt = tmp.order_of_key(ans[i]);
cnt = i - cnt;
ans2 += (ans[i] + cnt - i);
tmp.insert(ans[i]);
}
return ans2;
}
