結果
問題 |
No.3196 Unique Nickname
|
ユーザー |
![]() |
提出日時 | 2025-07-11 21:31:43 |
言語 | Rust (1.83.0 + proconio) |
結果 |
AC
|
実行時間 | 2 ms / 2,000 ms |
コード長 | 4,414 bytes |
コンパイル時間 | 14,632 ms |
コンパイル使用メモリ | 398,060 KB |
実行使用メモリ | 6,272 KB |
最終ジャッジ日時 | 2025-07-11 21:32:09 |
合計ジャッジ時間 | 15,840 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
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ファイルパターン | 結果 |
---|---|
other | AC * 20 |
コンパイルメッセージ
warning: variable does not need to be mutable --> src/main.rs:112:9 | 112 | 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:118:9 | 118 | let mut vec: Vec<i64> = read_vec(); | ----^^^ | | | help: remove this `mut` warning: variable does not need to be mutable --> src/main.rs:123:9 | 123 | let mut vec: Vec<usize> = read_vec(); | ----^^^ | | | help: remove this `mut` warning: variable does not need to be mutable --> src/main.rs:129:9 | 129 | let mut vec: Vec<f64> = read_vec(); | ----^^^ | | | help: remove this `mut` warning: variable does not need to be mutable --> src/main.rs:134:9 | 134 | let mut vec: Vec<char> = read_vec(); | ----^^^ | | | help: remove this `mut` warning: variable does not need to be mutable --> src/main.rs:139:9 | 139 | let mut vec: Vec<usize> = read_vec(); | ----^^^ | | | help: remove this `mut` warning: variable does not need to be mutable --> src/main.rs:144:9 | 144 | let mut vec: Vec<i64> = read_vec(); | ----^^^ | | | help: remove this `mut` warning: variable does not need to be mutable --> src/main.rs:150:9 | 150 | let mut vec: Vec<usize> = read_vec(); | ----^^^ | | | help: remove this `mut` warning: unused variable: `i` --> src/main.rs:188:9 | 188 | 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:189:13 | 189 | let mut s: Vec<Str
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::io::Read; 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: 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]) } #[allow(dead_code)] struct StringMultiSet { data: BTreeMap<String, usize>, } impl StringMultiSet { fn new() -> Self { StringMultiSet { data: BTreeMap::new(), } } fn insert(&mut self, s: String) { *self.data.entry(s).or_insert(0) += 1; } fn contains(&self, s: &String) -> bool { self.data.contains_key(s) } fn remove(&mut self, s: &String) { if let Some(count) = self.data.get_mut(s) { if *count > 1 { *count -= 1; } else { self.data.remove(s); } } } } fn main() { let n: usize = read(); let mut ans = true; let mut data = StringMultiSet::new(); let mut input = vec![]; for i in 0..n { let mut s: Vec<String> = read_vec(); let s1 = s[0].clone(); let s2 = s[1].clone(); input.push((s1.clone(), s2.clone())); data.insert(s1); data.insert(s2); // input.push((s1, s2)); } for i in 0..n { let (s1, s2) = input[i].clone(); data.remove(&s1); data.remove(&s2); if data.contains(&s1) && data.contains(&s2) { ans = false; break; } data.insert(s1); data.insert(s2); } yn!(ans); }