結果
| 問題 |
No.2780 The Bottle Imp
|
| コンテスト | |
| ユーザー |
 Moss_Local
|
| 提出日時 | 2024-06-07 22:29:53 |
| 言語 | Rust (1.83.0 + proconio) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 5,739 bytes |
| コンパイル時間 | 16,986 ms |
| コンパイル使用メモリ | 377,528 KB |
| 実行使用メモリ | 5,248 KB |
| 最終ジャッジ日時 | 2024-12-27 14:08:39 |
| 合計ジャッジ時間 | 19,452 ms |
|
ジャッジサーバーID （参考情報） |
judge4 / judge2 |
（要ログイン）
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 WA * 1 |
| other | AC * 32 WA * 8 |
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`
warning: unused variable: `i`
--> src/main.rs:236:9
|
236 | for i in 0..n {
| ^ help: if this is intentional, prefix it with an underscore: `_i`
|
= note: `#[warn(unused_variables)]` on by default
warning: variable does not need to be mutable
--> src/main.rs:237:13
|
237 | let mut vec: Vec<u
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 expr
println!("{}", $x);
};
}
macro_rules! vp {
// vector print separate with space
($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();
}
//input output
#[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])
}
pub struct Dsu {
n: usize,
// root node: -1 * component size
// otherwise: parent
parent_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: usize = read();
let mut dsu = Dsu::new(n);
for i in 0..n {
let mut vec: Vec<usize> = read_vec();
for i in 1..vec.len() {
let x = vec[i] - 1;
dsu.merge(i, x);
}
}
let mut group_set = set![];
for i in 0..n {
group_set.insert(dsu.leader(i));
}
yn!(group_set.len() == 1);
}