#include <bits/stdc++.h>
#include "shoes.h"
using namespace std;
typedef long long ll;
long long count_swaps(std::vector<int> s) {
vector<int> s2;
for(int x: s) {
if(x>0) s2.push_back(x);
}
sort(s2.begin(),s2.end());
int n = s.size();
int ans=INT_MAX;
while(next_permutation(s2.begin(),s2.end())) {
vector<int> target;
for(int x: s2) {
target.push_back(-x);
target.push_back(x);
}
//for(int x: target)cout<<x<<" ";
//cout<<"\n";
vector<int> s_copy = s;
int cnt=0;
for(int i=0;i<n;i++) {
int idx=0;
for(int j=i;j<n;j++) {
if(s[j]==target[i]) {
idx=j;
break;
}
}
while(idx>i) {
swap(s[idx],s[idx-1]);
idx--;
cnt++;
}
}
//cout<<cnt<<"\n";
s = s_copy;
ans=min(ans,cnt);
}
return ans;
}
