#![allow(non_snake_case, unused_imports, unused_must_use)] use std::io::{self, prelude::*}; use std::str; fn main() { let (stdin, stdout) = (io::stdin(), io::stdout()); let mut scan = Scanner::new(stdin.lock()); let mut out = io::BufWriter::new(stdout.lock()); macro_rules! input { ($T: ty) => { scan.token::<$T>() }; ($T: ty, $N: expr) => { (0..$N).map(|_| scan.token::<$T>()).collect::>() }; } let N = input!(usize); let M = input!(usize); let edges = (0..M) .map(|_| (input!(usize) - 1, input!(usize) - 1)) .collect::>(); let C = (0..N).map(|_| input!(usize) - 1).collect::>(); let W = input!(usize, 10); let Q = input!(usize); let mut query = vec![]; let mut ans = vec![usize::MAX; Q]; for _ in 0..Q { let (u, v) = (input!(usize) - 1, input!(usize) - 1); query.push((u, v)); } for s in 0..1 << 10 { let mut uf = UnionFind::new(N); let mut cost = 0; for i in 0..10 { if (s >> i) & 1 == 1 { cost += W[i]; } } for &(u, v) in edges.iter() { if (s >> C[u]) & 1 == 1 && (s >> C[v]) & 1 == 1 { uf.unite(u, v); } } for (i, &(u, v)) in query.iter().enumerate() { if uf.issame(u, v) { ans[i] = std::cmp::min(ans[i], cost); } } } for a in ans { if a == usize::MAX { writeln!(out, "-1"); } else { writeln!(out, "{}", a); } } } pub struct UnionFind { size: usize, par: Vec, rank: Vec, cnt: Vec, } impl UnionFind { /// generate unionfind has given size pub fn new(size: usize) -> Self { return Self { size: size, par: vec![size; size], rank: vec![0; size], cnt: vec![1; size], }; } /// check whether set s1 (∋ a) and set s2 (∋ b) are equal pub fn issame(&mut self, a: usize, b: usize) -> bool { assert!(a < self.size && b < self.size); return self.root(a) == self.root(b); } /// unite set s1 (∋ a) and set s2 (∋ b) pub fn unite(&mut self, mut a: usize, mut b: usize) { a = self.root(a); b = self.root(b); if a != b { if self.rank[a] < self.rank[b] { std::mem::swap(&mut a, &mut b); } self.par[b] = a; if self.rank[a] == self.rank[b] { self.rank[a] += 1; } self.cnt[a] += self.cnt[b]; } } /// get the size of set s1 (∋ a) pub fn size(&mut self, x: usize) -> usize { let r = self.root(x); return self.cnt[r]; } fn root(&mut self, x: usize) -> usize { if self.par[x] == self.size { return x; } else { self.par[x] = self.root(self.par[x]); return self.par[x]; } } } struct Scanner { reader: R, buf_str: Vec, buf_iter: str::SplitWhitespace<'static>, } impl Scanner { fn new(reader: R) -> Self { Self { reader, buf_str: vec![], buf_iter: "".split_whitespace(), } } fn token(&mut self) -> T { loop { if let Some(token) = self.buf_iter.next() { return token.parse().ok().expect("Failed parse"); } self.buf_str.clear(); self.reader .read_until(b'\n', &mut self.buf_str) .expect("Failed read"); self.buf_iter = unsafe { let slice = str::from_utf8_unchecked(&self.buf_str); std::mem::transmute(slice.split_whitespace()) } } } }