#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 ll time() { return static_cast(chrono::duration_cast(chrono::steady_clock::now().time_since_epoch()).count()) * 1e-9; } int main(){ cin.tie(nullptr); ios::sync_with_stdio(false); int n; cin >> n; ll K; cin >> K; K *= 2; vector a(n); for(int i=0;i> a[i]; } sort(a.begin(), a.end()); ll res = 0; for(int i=0,j=n-1;i=0 and a[i]*a[j] >= K){ j--; } res += n-1-j; } cout << res << endl; }