use std::io::Write; use std::collections::*; type Map = BTreeMap; type Set = BTreeSet; type Deque = VecDeque; fn main() { input! { n: usize, x: [i64; n], a: [i64; n], } let mut sum = x.clone(); sum.push(0); let mut xor = a.clone(); xor.push(0); for i in (0..n).rev() { sum[i] += sum[i + 1]; xor[i] ^= xor[i + 1]; } let mut dp = vec![std::i64::MAX; n + 1]; dp[n] = 0; for i in (0..n).rev() { for j in (i + 1)..=n { let mut val = 0; let m = (i + j - 1) / 2; val += x[m] * (m - i) as i64 - (sum[i] - sum[m]) + (sum[m] - sum[j]) - x[m] * (j - m) as i64; val += xor[i] ^ xor[j]; dp[i] = dp[i].min(val + dp[j]); } } println!("{}", dp[0]); } // ---------- 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 ----------