結果
問題 | No.1433 Two color sequence |
ユーザー | kichi2004_ |
提出日時 | 2021-03-19 22:19:13 |
言語 | Rust (1.83.0 + proconio) |
結果 |
AC
|
実行時間 | 38 ms / 2,000 ms |
コード長 | 2,094 bytes |
コンパイル時間 | 11,476 ms |
コンパイル使用メモリ | 388,204 KB |
実行使用メモリ | 16,560 KB |
最終ジャッジ日時 | 2024-11-18 23:00:56 |
合計ジャッジ時間 | 13,480 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 21 |
ソースコード
use std::str::FromStr; use std::io::{BufRead, stdin, Stdin}; use std::collections::{VecDeque}; struct Scanner { sep: char, inputs: VecDeque<String>, cin: Stdin, } #[allow(unused)] impl Scanner { pub fn new(ch: char) -> Scanner { Scanner { sep: ch, inputs: VecDeque::new(), cin: stdin(), } } pub fn read<T: FromStr>(&mut self) -> T { let mut tries = 0; while bool::from(self.inputs.is_empty()) { if tries == 3 { panic!("3 Blank lines found."); } let cin_base = &mut self.cin; let cin = &mut cin_base.lock(); let mut str: String = String::new(); cin.read_line(&mut str).unwrap(); for s in str.trim_end().split(self.sep) { &self.inputs.push_back(String::from(s)); } tries += 1; } let s: String = String::from(&self.inputs.pop_front().unwrap()); s.parse::<T>().ok() .expect("Failed to parse token.") } pub fn read_i32(&mut self) -> i32 { self.read() } pub fn read_i64(&mut self) -> i32 { self.read() } pub fn read_usize(&mut self) -> usize { self.read() } pub fn read_vec<T: FromStr>(&mut self, n: usize) -> Vec<T> { (0..n).map(|_| self.read()).collect::<Vec<_>>() } } fn main() { let mut sc = Scanner::new(' '); let n = sc.read_usize(); let s = sc.read::<String>().chars().collect::<Vec<char>>(); let a = sc.read_vec::<i64>(n); let mut score = vec![0i64; n]; score[0] = if s[0] == 'R' { a[0] } else { -a[0] }; for i in 1..n { score[i] = score[i - 1] + if s[i] == 'R' { a[i] } else { -a[i] }; } let mut current_min = 0i64; let mut current_max = 0i64; let mut ans = 0; for i in 0..n { ans = ans.max(&score[i] - current_min).max((&score[i] - current_max).abs()); // eprintln!("{}", nas); current_max = current_max.max(score[i]); current_min = current_min.min(score[i]); } println!("{}", ans); }