#[allow(unused_imports)] use std::cmp::*; use std::collections::*; // https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8 macro_rules! input { ($($r:tt)*) => { let stdin = std::io::stdin(); let mut bytes = std::io::Read::bytes(std::io::BufReader::new(stdin.lock())); let mut next = move || -> String{ bytes.by_ref().map(|r|r.unwrap() as char) .skip_while(|c|c.is_whitespace()) .take_while(|c|!c.is_whitespace()) .collect() }; input_inner!{next, $($r)*} }; } macro_rules! input_inner { ($next:expr) => {}; ($next:expr,) => {}; ($next:expr, $var:ident : $t:tt $($r:tt)*) => { let $var = read_value!($next, $t); input_inner!{$next $($r)*} }; } macro_rules! read_value { ($next:expr, [ $t:tt ; $len:expr ]) => { (0..$len).map(|_| read_value!($next, $t)).collect::>() }; ($next:expr, $t:ty) => ($next().parse::<$t>().expect("Parse error")); } fn main() { input! { n: usize, l: i64, w: [i64; n], } let x = *w.iter().min().unwrap() as usize; let mut rem = vec![0; n]; for i in 0..n { rem[i] = (w[i] % x as i64) as usize; } let mut que = BinaryHeap::new(); for i in 0..n { que.push((-w[i], rem[i])); } let mut d = vec![l + 1; x]; while let Some((cost, pos)) = que.pop() { let cost = -cost; if d[pos] <= cost { continue; } d[pos] = cost; for i in 0..n { let (w, c) = ((pos + rem[i]) % x, w[i]); let newcost = cost + c; if d[w] > newcost { d[w] = newcost + 1; que.push((-newcost, w)); } } } let mut ans = 0; for i in 0..x { if d[i] > l { continue; } ans += (l - d[i]) / x as i64 + 1; } println!("{}", ans); }