#pragma GCC optimize("Ofast") #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include using namespace std; typedef long long int ll; typedef unsigned long long ull; mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count()); ll myRand(ll B) { return (ull)rng() % B; } inline double time() { return static_cast(chrono::duration_cast(chrono::steady_clock::now().time_since_epoch()).count()) * 1e-9; } ll solve1(vector v){ ll res1 = 0; for(int i=0;i v){ ll res2 = 0; for(int i=0;i v){ return min(solve1(v),solve2(v)); } int main(){ cin.tie(nullptr); ios::sync_with_stdio(false); int n; cin >> n; vector a(n); for(int i=0;i> a[i]; } int res = n/2; ll cnt = 1e18; vector v; for(int i=0;i