#include namespace { #pragma GCC diagnostic ignored "-Wunused-function" #include #pragma GCC diagnostic warning "-Wunused-function" using namespace std; using namespace atcoder; #define rep(i,n) for(int i = 0; i < (int)(n); i++) #define rrep(i,n) for(int i = (int)(n) - 1; i >= 0; i--) #define all(x) begin(x), end(x) #define rall(x) rbegin(x), rend(x) template bool chmax(T& a, const T& b) { if (a < b) { a = b; return true; } else return false; } template bool chmin(T& a, const T& b) { if (b < a) { a = b; return true; } else return false; } using ll = long long; using P = pair; using VI = vector; using VVI = vector; using VL = vector; using VVL = vector; } int main() { ios::sync_with_stdio(false); cin.tie(0); int n, l, r; cin >> n >> l >> r; r++; VL a(n); rep(i, n) cin >> a[i]; sort(all(a)); int ans = 1; rep(j, n) rep(i, j) { ll x = a[i], y = a[j]; ll xy = x * y; if (!(l <= xy && xy < r)) continue; chmax(ans, 2); constexpr long long INF = 1002003004005006007; auto ceildiv = [](ll n, ll d) { return n / d + ((n ^ d) > 0 && n % d != 0); }; auto floordiv = [](ll n, ll d) { return n / d - ((n ^ d) < 0 && n % d != 0); }; auto f = [&](ll x) { if (x > 0) { return pair(ceildiv(l, x), ceildiv(r, x)); } else if (x == 0) { if (l <= 0 && 0 < r) return pair(-INF, INF); else return pair(0LL, 0LL); } else { return pair(floordiv(r, x) + 1, floordiv(l, x) + 1); } }; auto [m1, M1] = f(x); auto [m2, M2] = f(y); ll m = max({m1, m2, x}), M = min({M1, M2, y}); if (m >= M) continue; int cnt = lower_bound(all(a), M) - lower_bound(all(a), m); for (ll z : {x, y}) cnt -= m <= z && z < M; chmax(ans, cnt + 2); } cout << ans << '\n'; }