結果
問題 | No.2664 Prime Sum |
ユーザー | Moss_Local |
提出日時 | 2024-03-08 21:38:23 |
言語 | Rust (1.83.0 + proconio) |
結果 |
AC
|
実行時間 | 1 ms / 2,000 ms |
コード長 | 5,927 bytes |
コンパイル時間 | 22,423 ms |
コンパイル使用メモリ | 396,464 KB |
実行使用メモリ | 6,824 KB |
最終ジャッジ日時 | 2024-09-29 19:02:27 |
合計ジャッジ時間 | 14,082 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
(要ログイン)
ファイルパターン | 結果 |
---|---|
other | AC * 37 |
コンパイルメッセージ
warning: variable does not need to be mutable --> src/main.rs:122:9 | 122 | 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:128:9 | 128 | let mut vec: Vec<i64> = read_vec(); | ----^^^ | | | help: remove this `mut` warning: variable does not need to be mutable --> src/main.rs:133:9 | 133 | let mut vec: Vec<usize> = read_vec(); | ----^^^ | | | help: remove this `mut` warning: variable does not need to be mutable --> src/main.rs:139:9 | 139 | let mut vec: Vec<f64> = read_vec(); | ----^^^ | | | help: remove this `mut` warning: variable does not need to be mutable --> src/main.rs:144:9 | 144 | let mut vec: Vec<char> = read_vec(); | ----^^^ | | | help: remove this `mut` warning: variable does not need to be mutable --> src/main.rs:149:9 | 149 | let mut vec: Vec<usize> = read_vec(); | ----^^^ | | | help: remove this `mut` warning: variable does not need to be mutable --> src/main.rs:154:9 | 154 | let mut vec: Vec<i64> = read_vec(); | ----^^^ | | | help: remove this `mut` warning: variable does not need to be mutable --> src/main.rs:160:9 | 160 | let mut vec: Vec<usize> = read_vec(); | ----^^^ | | | help: remove this `mut`
ソースコード
// -*- coding:utf-8-unix -*-// #![feature(map_first_last)]#![allow(dead_code)]#![allow(unused_imports)]#![allow(unused_macros)]// use core::num;use std::cmp::*;use std::fmt::*;use std::hash::*;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 MOD: i64 = MOD2;const UMOD: usize = MOD as usize;const M_PI: f64 = 3.14159265358979323846;// use proconio::input;// const MOD: i64 = INF;use cmp::Ordering::*;use std::collections::*;use std::io::stdin;use std::io::stdout;use std::io::Write;macro_rules! p {($x:expr) => {//if exprprintln!("{}", $x);};}macro_rules! vp {// vector print separate with space($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 $val {println!("Yes");} else {println!("No");}};}macro_rules! map{// declear btreemap($($key:expr => $val:expr),*) => {{let mut map = ::std::collections::BTreeMap::new();$(map.insert($key, $val);)*map}};}macro_rules! set{// declear btreemap($($key:expr),*) => {{let mut set = ::std::collections::BTreeSet::new();$(set.insert($key);)*set}};}fn main() {solve();}// use str::Chars;#[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: u32) -> 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 read_imat(h: usize) -> Vec<Vec<i64>> {(0..h).map(|_| read_vec()).collect()}fn read_cmat(h: usize) -> Vec<Vec<char>> {(0..h).map(|_| read::<String>().chars().collect()).collect()}pub struct Dsu {n: usize,// root node: -1 * component size// otherwise: parentparent_or_size: Vec<i32>,}impl Dsu {// 0 <= size <= 10^8 is constrained.pub fn new(size: usize) -> Self {Self {n: size,parent_or_size: vec![-1; size],}}pub fn merge(&mut self, a: usize, b: usize) -> usize {assert!(a < self.n);assert!(b < self.n);let (mut x, mut y) = (self.leader(a), self.leader(b));if x == y {return x;}if -self.parent_or_size[x] < -self.parent_or_size[y] {std::mem::swap(&mut x, &mut y);}self.parent_or_size[x] += self.parent_or_size[y];self.parent_or_size[y] = x as i32;x}pub fn same(&mut self, a: usize, b: usize) -> bool {assert!(a < self.n);assert!(b < self.n);self.leader(a) == self.leader(b)}pub fn leader(&mut self, a: usize) -> usize {assert!(a < self.n);if self.parent_or_size[a] < 0 {return a;}self.parent_or_size[a] = self.leader(self.parent_or_size[a] as usize) as i32;self.parent_or_size[a] as usize}pub fn size(&mut self, a: usize) -> usize {assert!(a < self.n);let x = self.leader(a);-self.parent_or_size[x] as usize}pub fn groups(&mut self) -> Vec<Vec<usize>> {let mut leader_buf = vec![0; self.n];let mut group_size = vec![0; self.n];for i in 0..self.n {leader_buf[i] = self.leader(i);group_size[leader_buf[i]] += 1;}let mut result = vec![Vec::new(); self.n];for i in 0..self.n {result[i].reserve(group_size[i]);}for i in 0..self.n {result[leader_buf[i]].push(i);}result.into_iter().filter(|x| !x.is_empty()).collect::<Vec<Vec<usize>>>()}}fn solve() {let (n, m) = readuu();let mut uf = Dsu::new(n * 2);for _ in 0..m {let (a, b) = readuu();uf.merge(a - 1, b - 1 + n);uf.merge(a - 1 + n, b - 1);}let mut res = true;for i in 0..n {if uf.same(i, i + n) {res = false;break;}}yn!(res);return;}