#![allow(non_snake_case)]

use proconio::input;
use proconio::fastout;

type Item = (u64, u64);

fn compare(item1: &Item, item2: &Item) -> bool {
    item1.0 >= item2.0 || item1.1 >= item2.1
}

fn enumerate_items(items: &[Item], capacity: u64) -> Vec<Item> {

    let mut a0: Vec<Item> = vec![(0, 0)];
    for (weight, value) in items {
        let N0: usize = a0.len();
        let mut a1: Vec<Item> = Vec::new();
        for (w0, v0) in &a0 {
            let w1: u64 = w0 + weight;
            if w1 > capacity {
                break;
            }
            let v1: u64 = v0 + value;
            a1.push((w1, v1));
        }
        let N1: usize = a1.len();

        let mut b: Vec<Item> = vec![(0, 0)];
        let mut i0: usize = 1;
        let mut i1: usize = 0;
        loop {
            if i0 == N0 {
                while i1 < N1 {
                    b.push(a1[i1]);
                    i1 += 1;
                }
                break;
            } else if i1 == N1 {
                while i0 < N0 {
                    b.push(a0[i0]);
                    i0 += 1;
                }
                break;
            } else {
                if a0[i0].0 < a1[i1].0 {
                    b.push(a0[i0]);
                    i0 += 1;
                    while i1 < N1 && compare(b.last().unwrap(), &a1[i1]) {
                        i1 += 1;
                    }
                } else if a0[i0].0 > a1[i1].0 {
                    b.push(a1[i1]);
                    i1 += 1;
                    while i0 < N0 && compare(b.last().unwrap(), &a0[i0]) {
                        i0 += 1;
                    }
                } else {
                    if a0[i0].1 >= a1[i1].1 {
                        b.push(a0[i0]);
                        i0 += 1;
                        i1 += 1;
                        while i1 < N1 && compare(b.last().unwrap(), &a1[i1]) {
                            i1 += 1;
                        }
                    } else {
                        b.push(a1[i1]);
                        i1 += 1;
                        i0 += 1;
                        while i0 < N0 && compare(b.last().unwrap(), &a0[i0]) {
                            i0 += 1;
                        }
                    }
                }
            }
        }
        a0 = b;
    }
    a0
}

fn knapsack_01_small_items(items: &[Item], capacity: u64) -> u64 {

    let N: usize = items.len();
    let N0: usize = N / 2;

    let a0 = enumerate_items(&items[..N0], capacity);
    let a1 = enumerate_items(&items[N0..], capacity);

    let mut result: u64 = 0;
    let mut j: usize = a1.len() - 1;
    'outer: for (w0, v0) in a0 {
        let res: u64 = capacity - w0;
        while a1[j].0 > res {
            if j == 0 {
                break 'outer;
            }
            j -= 1;
        }
        result = std::cmp::max(result, v0 + a1[j].1);
    }
    result
}

#[fastout]
fn main() {

    input! {
        N: usize,
        v_w: [(u64, u64); N],
        Q: usize,
    }
    let mut items = vec![(0u64, 0u64); N + 1];
    for i in 0..N {
      items[i + 1] = (v_w[i].1, v_w[i].0);
  }
  
    for _ in 0..Q {
        input! {
            mut v: usize,
            L: u64,
        }
        let mut path_items = Vec::<(u64, u64)>::new();
        while v > 0 {
            path_items.push(items[v]);
            v /= 2;
        }
        println!("{}", knapsack_01_small_items(&path_items, L));
    }
}

Measured memory_bytes: 14652