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#include <iostream>
#include <fstream>
#include <vector>
#include <map>
#include <queue>
#include "shoes.h"
using namespace std;
typedef long long  ll;
const int maxn = 2e5 + 10;
ll segment_tree[3 * maxn];
void build_tree(int L, int R, int position) {
    if(L == R) {
        segment_tree[position] = 0;
    }
    else {
        int middle = (L + R) / 2;
        build_tree(L, middle, 2 * position);
        build_tree(middle + 1, R, 2 * position + 1);
        segment_tree[position] = segment_tree[2 * position] + segment_tree[2 * position + 1];
    }
}
// L R i L R j L R
ll query(int L, int R, int position, int i, int j) {
    if(i <= L and R <= j) {
        return segment_tree[position];
    }
    if(R < i or j < L) {
        return 0;
    }
    int middle = (L + R) / 2;
    return query(L, middle, 2 * position, i, j) + query(middle + 1, R, 2 * position + 1, i, j);
}
void update(int L, int R, int position, int idx, ll new_val) {
    if(L == R) {
        segment_tree[position] += new_val;
        return;
    }
    int middle = (L + R) / 2;
    if(idx <= middle) {
        update(L, middle, 2 * position, idx, new_val);
    }
    else {
        update(middle + 1, R, 2 * position + 1, idx, new_val);
    }
    segment_tree[position] = segment_tree[2 * position] + segment_tree[2 * position + 1];
}
ll count_swaps(vector<int> v) {
    map<int, queue<int> > m;
    vector<int> S;
    int cnt = 0;
    for(int i = 0; i < v.size(); i++) {
        if(!m[v[i]].empty()) {
            S.push_back(m[v[i]].front());
            m[v[i]].pop();
        }
        else {
            int r = 0;
            if(v[i] > 0) {
                r = 1;
            }
            S.push_back(2 * cnt + r);
            m[-v[i]].push(2 * cnt + (1 - r));
            cnt++;
            
        }
    }
    build_tree(0, (int) v.size() + 1, 1);
    ll res = 0;
    for(int i = 0; i < (int) S.size(); i++) {
        update(0, (int) v.size() + 1, 1, S[i], 1);
        res += query(0, (int) v.size() + 1, 1, S[i] + 1, v.size());
    }
    return res;
}