fn run(sc: &mut scanner::Scanner) { let n: usize = sc.next(b' '); let q: usize = sc.next(b'\n'); let a = (0..n) .map(|_| { let a: u32 = sc.next(b' '); let b: u32 = sc.next(b'\n'); Affine::new(a, b) }) .collect::>(); let seg = XorSegmentTree::new(&a); let out = std::io::stdout(); let mut out = std::io::BufWriter::new(out.lock()); for _ in 0..q { let l: usize = sc.next(b' '); let r: usize = sc.next(b' '); let p: usize = sc.next(b' '); let x: u32 = sc.next(b'\n'); let ans = seg.find(l, r, p).eval(x); writeln!(out, "{}", ans).ok(); } } const MOD: u32 = 998_244_353; #[derive(Clone)] struct Affine(u32, u32); impl Affine { fn new(a: u32, b: u32) -> Self { Affine(a, b) } fn eval(&self, x: u32) -> u32 { ((self.0 as u64 * x as u64 + self.1 as u64) % MOD as u64) as u32 } } impl Monoid for Affine { fn merge(&self, rhs: &Self) -> Self { let a = self.0 as u64 * rhs.0 as u64 % MOD as u64; let b = (self.1 as u64 * rhs.0 as u64 + rhs.1 as u64) % MOD as u64; Affine::new(a as u32, b as u32) } fn e() -> Self { Affine::new(1, 0) } } pub trait Monoid: Clone { fn merge(&self, rhs: &Self) -> Self; fn e() -> Self; } pub struct StaticXorSegmentTree { data: Vec>, size: usize, } impl StaticXorSegmentTree where T: Monoid, { pub fn new(a: &[T]) -> Self { let size = a.len(); assert!(size.next_power_of_two() == size); let mut data = vec![vec![]; 2 * size]; for (data, a) in data[size..].iter_mut().zip(a.iter()) { *data = vec![a.clone()]; } for i in (1..size).rev() { let a = &data[2 * i]; let b = &data[2 * i + 1]; let mut c = Vec::with_capacity(2 * a.len()); c.extend(a.iter().zip(b.iter()).map(|(a, b)| a.merge(b))); c.extend(a.iter().zip(b.iter()).map(|(a, b)| b.merge(a))); data[i] = c; } Self { data, size } } pub fn find(&self, l: usize, r: usize, xor: usize) -> T { assert!(l <= r && r <= self.size && xor < self.size); if l == r { return T::e(); } let mut l = l + self.size; let mut r = r + self.size; let mut shift = 0; let mut x = T::e(); let mut y = T::e(); while l < r { if l & 1 == 1 { let a = l ^ (xor >> shift); let b = xor & ((1 << shift) - 1); x = x.merge(&self.data[a][b]); l += 1; } if r & 1 == 1 { r -= 1; let a = r ^ (xor >> shift); let b = xor & ((1 << shift) - 1); y = self.data[a][b].merge(&y); } l >>= 1; r >>= 1; shift += 1; } x.merge(&y) } pub fn find_all(&self, xor: usize) -> T { assert!(xor < self.size); self.data[1][xor].clone() } fn update(&mut self, x: usize, v: T) { let mut x = x + self.size; self.data[x][0] = v; x >>= 1; while x >= 1 { let mut c = std::mem::take(&mut self.data[x]); let a = &self.data[2 * x]; let b = &self.data[2 * x + 1]; let ab = a.iter().zip(b.iter()).chain(b.iter().zip(a.iter())); for (c, (a, b)) in c.iter_mut().zip(ab) { *c = a.merge(b); } self.data[x] = c; x >>= 1; } } } pub struct XorSegmentTree { data: Vec>, size: usize, batch: usize, } impl XorSegmentTree where T: Monoid, { pub fn new(a: &[T]) -> Self { let size = a.len(); assert!(size.next_power_of_two() == size); let batch = 1 << (size.trailing_zeros() / 2); let data = a .chunks(batch) .map(|a| StaticXorSegmentTree::new(a)) .collect(); Self { data, size, batch } } pub fn update(&mut self, x: usize, v: T) { assert!(x < self.size); self.data[x / self.batch].update(x % self.batch, v); } pub fn find(&self, l: usize, r: usize, xor: usize) -> T { assert!(l <= r && r <= self.size && xor < self.size); if l == r { return T::e(); } let u = xor / self.batch; let d = xor % self.batch; let mut ans = T::e(); for i in 0..(self.size / self.batch) { let geta = i * self.batch; let l = l.max(geta); let r = r.min(geta + self.batch); if l >= r { continue; } if r - l == self.batch { ans = ans.merge(&self.data[u ^ (l / self.batch)].find_all(d)); } else { ans = ans.merge(&self.data[u ^ (l / self.batch)].find(l - geta, r - geta, d)); } } ans } } // ---------- begin Scanner(require delimiter) ---------- mod scanner { pub struct Scanner { reader: R, buf: Vec, } #[allow(dead_code)] impl Scanner { pub fn new(reader: R) -> Self { Scanner { reader: reader, buf: Vec::with_capacity(1024), } } fn read(&mut self, del: u8) { self.buf.clear(); self.reader.read_until(del, &mut self.buf).ok(); assert!(self.buf.pop().unwrap() == del); } pub fn next(&mut self, del: u8) -> T { self.read(del); std::str::from_utf8(&self.buf) .unwrap() .trim() .parse::() .ok() .unwrap() } pub fn next_bytes(&mut self, del: u8) -> Vec { self.read(del); std::str::from_utf8(&self.buf) .unwrap() .trim() .bytes() .collect() } } } // ---------- end scanner(require delimiter) ---------- use std::io::Write; fn main() { let stdin = std::io::stdin(); let mut sc = scanner::Scanner::new(stdin.lock()); run(&mut sc); }