fn main() { let n = 28; input! { m: i32, g: [i32; n], h: [i32; n], q: usize, ask: [(usize, i32); q], } let enumerate = |g: &[i32], h: &[i32]| -> Vec> { let n = g.len(); let mut dp = vec![(0, 0); 1 << n]; for (i, (g, h)) in g.iter().zip(h.iter()).enumerate() { let (l, r) = dp.split_at_mut(1 << i); for (l, r) in l.iter_mut().zip(r.iter_mut()) { *r = (l.0 + *h, l.1); *l = (l.0 + *g, l.1 + 1); if r.0 >= m { r.0 -= m; } if l.0 >= m { l.0 -= m; } } dp[..(2 << i)].sort(); } let mut g = vec![vec![]; n + 1]; for (v, k) in dp { g[k].push(v); } g }; let x = n / 2; let a = enumerate(&g[..x], &h[..x]); let b = enumerate(&g[x..], &h[x..]); let calc = |a: &[i32], b: &[i32], m: i32| -> usize { let mut x = 0; let mut cnt = 0; for a in a.iter().rev() { while x < b.len() && b[x] < m - *a { x += 1; } cnt += b.len() - x; } cnt }; for (k, x) in ask { let mut ans = 0usize; for i in 0..(k + 1) { if let (Some(a), Some(b)) = (a.get(i), b.get(k - i)) { ans += calc(a, b, x) - calc(a, b, m) + calc(a, b, m + x); } } println!("{}", ans); } } // ---------- begin input macro ---------- // reference: https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8 #[macro_export] macro_rules! input { (source = $s:expr, $($r:tt)*) => { let mut iter = $s.split_whitespace(); input_inner!{iter, $($r)*} }; ($($r:tt)*) => { let s = { use std::io::Read; let mut s = String::new(); std::io::stdin().read_to_string(&mut s).unwrap(); s }; let mut iter = s.split_whitespace(); input_inner!{iter, $($r)*} }; } #[macro_export] macro_rules! input_inner { ($iter:expr) => {}; ($iter:expr, ) => {}; ($iter:expr, $var:ident : $t:tt $($r:tt)*) => { let $var = read_value!($iter, $t); input_inner!{$iter $($r)*} }; } #[macro_export] macro_rules! read_value { ($iter:expr, ( $($t:tt),* )) => { ( $(read_value!($iter, $t)),* ) }; ($iter:expr, [ $t:tt ; $len:expr ]) => { (0..$len).map(|_| read_value!($iter, $t)).collect::>() }; ($iter:expr, chars) => { read_value!($iter, String).chars().collect::>() }; ($iter:expr, bytes) => { read_value!($iter, String).bytes().collect::>() }; ($iter:expr, usize1) => { read_value!($iter, usize) - 1 }; ($iter:expr, $t:ty) => { $iter.next().unwrap().parse::<$t>().expect("Parse error") }; } // ---------- end input macro ----------