結果
| 問題 |
No.672 最長AB列
|
| コンテスト | |
| ユーザー |
manta1130
|
| 提出日時 | 2020-11-01 22:26:58 |
| 言語 | Rust (1.83.0 + proconio) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 5,293 bytes |
| コンパイル時間 | 12,214 ms |
| コンパイル使用メモリ | 398,380 KB |
| 実行使用メモリ | 6,944 KB |
| 最終ジャッジ日時 | 2024-07-22 05:54:05 |
| 合計ジャッジ時間 | 13,628 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 11 WA * 5 |
コンパイルメッセージ
warning: unused attribute `macro_export`
--> src/main.rs:63:5
|
63 | #[macro_export]
| ^^^^^^^^^^^^^^^
|
note: the built-in attribute `macro_export` will be ignored, since it's applied to the macro invocation `thread_local`
--> src/main.rs:64:5
|
64 | thread_local! {
| ^^^^^^^^^^^^
= note: `#[warn(unused_attributes)]` on by default
ソースコード
fn main() {
let s = input_line_str().to_charvec();
let mut ok = 0;
let mut ng = 1 + s.len() / 2;
while ng - ok > 1 {
let mid = (ok + ng) / 2;
let mut f = 0;
let mut t = mid * 2;
let mut ca = 0;
let mut cb = 0;
for i in 0..mid * 2 {
if s[i] == 'A' {
ca += 1;
} else {
cb += 1;
}
}
if ca == cb {
ok = mid;
continue;
}
let mut flag = false;
while t < s.len() {
if s[t] == 'A' {
ca += 1;
} else {
cb += 1;
}
if s[f] == 'A' {
ca -= 1;
} else {
cb -= 1;
}
t += 1;
f += 1;
if ca == cb {
flag = true;
break;
}
}
if flag {
ok = mid;
} else {
ng = mid;
}
//dbg!(ok, ng);
}
println!("{}", ok * 2);
}
//https://github.com/manta1130/competitive-template-rs
use input::*;
pub mod input {
use std::cell::RefCell;
use std::io;
pub const SPLIT_DELIMITER: char = ' ';
pub use std::io::prelude::*;
#[macro_export]
thread_local! {
pub static INPUT_BUFFER:RefCell<std::collections::VecDeque<String>>=RefCell::new(std::collections::VecDeque::new());
}
#[macro_export]
macro_rules! input_internal {
($x:ident : $t:ty) => {
INPUT_BUFFER.with(|p| {
if p.borrow().len() == 0 {
let temp_str = input_line_str();
let mut split_result_iter = temp_str
.split(SPLIT_DELIMITER)
.map(|q| q.to_string())
.collect::<std::collections::VecDeque<_>>();
p.borrow_mut().append(&mut split_result_iter)
}
});
let mut buf_split_result = String::new();
INPUT_BUFFER.with(|p| buf_split_result = p.borrow_mut().pop_front().unwrap());
let $x: $t = buf_split_result.parse().unwrap();
};
(mut $x:ident : $t:ty) => {
INPUT_BUFFER.with(|p| {
if p.borrow().len() == 0 {
let temp_str = input_line_str();
let mut split_result_iter = temp_str
.split(SPLIT_DELIMITER)
.map(|q| q.to_string())
.collect::<std::collections::VecDeque<_>>();
p.borrow_mut().append(&mut split_result_iter)
}
});
let mut buf_split_result = String::new();
INPUT_BUFFER.with(|p| buf_split_result = p.borrow_mut().pop_front().unwrap());
let mut $x: $t = buf_split_result.parse().unwrap();
};
}
#[macro_export]
macro_rules! inputv {
($i:ident : $t:ty) => {
input_internal!{$i : $t}
};
(mut $i:ident : $t:ty) => {
input_internal!{mut $i : $t}
};
($i:ident : $t:ty $(,)*) => {
input_internal!{$i : $t}
};
(mut $i:ident : $t:ty $(,)*) => {
input_internal!{mut $i : $t}
};
(mut $i:ident : $t:ty,$($q:tt)*) => {
input_internal!{mut $i : $t}
inputv!{$($q)*}
};
($i:ident : $t:ty,$($q:tt)*) => {
input_internal!{$i : $t}
inputv!{$($q)*}
};
}
pub fn input_all() {
INPUT_BUFFER.with(|p| {
if p.borrow().len() == 0 {
let mut temp_str = String::new();
std::io::stdin().read_to_string(&mut temp_str).unwrap();
let mut split_result_iter = temp_str
.split_whitespace()
.map(|q| q.to_string())
.collect::<std::collections::VecDeque<_>>();
p.borrow_mut().append(&mut split_result_iter)
}
});
}
pub fn input_line_str() -> String {
let mut s = String::new();
io::stdin().read_line(&mut s).unwrap();
s.trim().to_string()
}
#[allow(clippy::match_wild_err_arm)]
pub fn input_vector<T>() -> Vec<T>
where
T: std::str::FromStr,
{
let mut v: Vec<T> = Vec::new();
let s = input_line_str();
let split_result = s.split(SPLIT_DELIMITER);
for z in split_result {
let buf = match z.parse() {
Ok(r) => r,
Err(_) => panic!("Parse Error",),
};
v.push(buf);
}
v
}
#[allow(clippy::match_wild_err_arm)]
pub fn input_vector_row<T>(n: usize) -> Vec<T>
where
T: std::str::FromStr,
{
let mut v = Vec::with_capacity(n);
for _ in 0..n {
let buf = match input_line_str().parse() {
Ok(r) => r,
Err(_) => panic!("Parse Error",),
};
v.push(buf);
}
v
}
pub trait ToCharVec {
fn to_charvec(&self) -> Vec<char>;
}
impl ToCharVec for String {
fn to_charvec(&self) -> Vec<char> {
self.to_string().chars().collect::<Vec<_>>()
}
}
}
manta1130