結果
問題 | No.2955 Pizza Delivery Plan |
ユーザー |
![]() |
提出日時 | 2024-11-08 22:50:21 |
言語 | Rust (1.83.0 + proconio) |
結果 |
AC
|
実行時間 | 130 ms / 2,000 ms |
コード長 | 4,635 bytes |
コンパイル時間 | 24,507 ms |
コンパイル使用メモリ | 378,572 KB |
実行使用メモリ | 27,776 KB |
最終ジャッジ日時 | 2024-11-08 22:50:52 |
合計ジャッジ時間 | 25,433 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 28 |
コンパイルメッセージ
warning: unnecessary parentheses around `for` iterator expression --> src/main.rs:166:14 | 166 | for b in (0..(1 << n)) { | ^ ^ | = note: `#[warn(unused_parens)]` on by default help: remove these parentheses | 166 - for b in (0..(1 << n)) { 166 + for b in 0..(1 << n) { | warning: variable does not need to be mutable --> src/main.rs:110:9 | 110 | let mut vec: Vec<i64> = read_vec(); | ----^^^ | | | help: remove this `mut` | = note: `#[warn(unused_mut)]` on by default warning: variable does not need to be mutable --> src/main.rs:116:9 | 116 | let mut vec: Vec<i64> = read_vec(); | ----^^^ | | | help: remove this `mut` warning: variable does not need to be mutable --> src/main.rs:121:9 | 121 | let mut vec: Vec<usize> = read_vec(); | ----^^^ | | | help: remove this `mut` warning: variable does not need to be mutable --> src/main.rs:127:9 | 127 | let mut vec: Vec<f64> = read_vec(); | ----^^^ | | | help: remove this `mut` warning: variable does not need to be mutable --> src/main.rs:132:9 | 132 | let mut vec: Vec<char> = read_vec(); | ----^^^ | | | help: remove this `mut` warning: variable does not need to be mutable --> src/main.rs:137:9 | 137 | let mut vec: Vec<usize> = read_vec(); | ----^^^ | | | help: remove this `mut` warning: variable does not need to be mutable --> src/main.rs:142:9 | 142 | let mut vec: Vec<i64> = read_vec(); | ----^^^ | | | help: remove this `mut` warning: variable does not need to be mutable --> src/main.rs:148:9 | 148 | let mut vec: Vec<usize> = read_vec(); | ----^^^ | | | help: remove this `mut` warn
ソースコード
#![allow(dead_code)]#![allow(unused_imports)]#![allow(unused_macros)]use std::cmp::*;use std::fmt::*;use std::hash::*;use std::io::BufRead;use std::iter::FromIterator;use std::*;use std::{cmp, collections, fmt, io, iter, ops, str};const INF: i64 = 1223372036854775807;const UINF: usize = INF as usize;const LINF: i64 = 2147483647;const INF128: i128 = 1223372036854775807000000000000;const MOD1: i64 = 1000000007;const MOD9: i64 = 998244353;const MOD: i64 = MOD9;const UMOD: usize = MOD as usize;const M_PI: f64 = 3.14159265358979323846;use cmp::Ordering::*;use std::collections::*;use std::io::stdin;use std::io::stdout;use std::io::Write;macro_rules! p {($x:expr) => {println!("{}", $x);};}macro_rules! vp {($x:expr) => {println!("{}",$x.iter().map(|x| x.to_string()).collect::<Vec<_>>().join(" "));};}macro_rules! d {($x:expr) => {eprintln!("{:?}", $x);};}macro_rules! yn {($val:expr) => {if $val {println!("Yes");} else {println!("No");}};}macro_rules! map{($($key:expr => $val:expr),*) => {{let mut map = ::std::collections::BTreeMap::new();$(map.insert($key, $val);)*map}};}macro_rules! set{($($key:expr),*) => {{let mut set = ::std::collections::BTreeSet::new();$(set.insert($key);)*set}};}#[allow(dead_code)]fn read<T: std::str::FromStr>() -> T {let mut s = String::new();std::io::stdin().read_line(&mut s).ok();s.trim().parse().ok().unwrap()}#[allow(dead_code)]fn read_vec<T: std::str::FromStr>() -> Vec<T> {read::<String>().split_whitespace().map(|e| e.parse().ok().unwrap()).collect()}#[allow(dead_code)]fn read_mat<T: std::str::FromStr>(n: usize) -> Vec<Vec<T>> {(0..n).map(|_| read_vec()).collect()}#[allow(dead_code)]fn readii() -> (i64, i64) {let mut vec: Vec<i64> = read_vec();(vec[0], vec[1])}#[allow(dead_code)]fn readiii() -> (i64, i64, i64) {let mut vec: Vec<i64> = read_vec();(vec[0], vec[1], vec[2])}#[allow(dead_code)]fn readuu() -> (usize, usize) {let mut vec: Vec<usize> = read_vec();(vec[0], vec[1])}#[allow(dead_code)]fn readff() -> (f64, f64) {let mut vec: Vec<f64> = read_vec();(vec[0], vec[1])}fn readcc() -> (char, char) {let mut vec: Vec<char> = read_vec();(vec[0], vec[1])}fn readuuu() -> (usize, usize, usize) {let mut vec: Vec<usize> = read_vec();(vec[0], vec[1], vec[2])}#[allow(dead_code)]fn readiiii() -> (i64, i64, i64, i64) {let mut vec: Vec<i64> = read_vec();(vec[0], vec[1], vec[2], vec[3])}#[allow(dead_code)]fn readuuuu() -> (usize, usize, usize, usize) {let mut vec: Vec<usize> = read_vec();(vec[0], vec[1], vec[2], vec[3])}fn dist(a: (f64, f64), b: (f64, f64)) -> f64 {((a.0 - b.0).powi(2) + (a.1 - b.1).powi(2)).sqrt()}fn main() {let (n, k) = readuu();let mut pos = vec![];for i in 0..n {let (x, y) = readii();pos.push((x as f64, y as f64));}let mut dp = vec![vec![vec![UINF as f64; 1 << n]; n]; k];for i in 0..n {dp[k - 1][i][1 << i] = dist((0.0, 0.0), pos[i]);}for b in (0..(1 << n)) {for i in 0..n {if b & (1 << i) == 0 {continue;}for j in 0..n {if b & (1 << j) != 0 {continue;}for l in 0..k {dp[k - 1][j][b | (1 << j)] = dp[k - 1][j][b | (1 << j)].min(dp[l][i][b] + dist((0.0, 0.0), pos[i]) + dist((0.0, 0.0), pos[j]));if l == 0 {continue;}dp[l - 1][j][b | (1 << j)] =dp[l - 1][j][b | (1 << j)].min(dp[l][i][b] + dist(pos[i], pos[j]));}}}}let mut ans = INF as f64;for i in 0..n {for j in 0..k {ans = ans.min(dp[j][i][(1 << n) - 1] + dist((0.0, 0.0), pos[i]));}}//debug// for i in 0..n {// for j in 0..k {// for l in 0..(1 << n) {// eprint!("{} ", dp[j][i][l]);// }// eprintln!();// }// }println!("{}", ans);}