結果
問題 | No.193 筒の数式 |
ユーザー | kei |
提出日時 | 2018-09-08 17:55:39 |
言語 | Rust (1.83.0 + proconio) |
結果 |
AC
|
実行時間 | 2 ms / 1,000 ms |
コード長 | 3,580 bytes |
コンパイル時間 | 12,559 ms |
コンパイル使用メモリ | 405,844 KB |
実行使用メモリ | 6,820 KB |
最終ジャッジ日時 | 2024-12-17 13:26:57 |
合計ジャッジ時間 | 12,467 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 16 |
ソースコード
#![allow(unused_mut, non_snake_case, unused_macros,unused_imports)]use std::cmp::{max, min, Ordering};use std::collections::{HashMap, HashSet, BinaryHeap, VecDeque};use std::iter::FromIterator;// 高速 EOF要//macro_rules! input {(source = $s:expr, $($r:tt)*) => {let mut iter = $s.split_whitespace();input_inner!{iter, $($r)*}};($($r:tt)*) => {let mut s ={use std::io::Read;let mut s = String::new();std::io::stdin().read_to_string(&mut s).unwrap();s};let mut iter = s.split_whitespace();input_inner!{iter, $($r)*}};}//macro_rules! input_inner {($iter:expr) => {};($iter:expr, ) => {};($iter:expr, $var:ident : $t:tt $($r:tt)*) => {let $var = read_value!($iter, $t);input_inner!{$iter $($r)*}};}//macro_rules! read_value {($iter:expr, ( $($t:tt),* )) => {( $(read_value!($iter, $t)),* )};($iter:expr, [ $t:tt ; $len:expr ]) => {(0..$len).map(|_|read_value!($iter, $t)).collect::<Vec<_>>()};($iter:expr, chars) => {read_value!($iter, String).chars().collect::<Vec<char>>()};($iter:expr,usize1) => {read_value!($iter, usize) - 1};($iter:expr, $t:ty) => {$iter.next().unwrap().parse::<$t>().expect("Parse error")};}// 低速 EOF不要macro_rules! input {(source = $s:expr, $($r:tt)*) => {let mut iter = $s.split_whitespace();let mut next = || { iter.next().unwrap() };input_inner!{next, $($r)*}};($($r:tt)*) => {let stdin = std::io::stdin();let mut bytes = std::io::Read::bytes(std::io::BufReader::new(stdin.lock()));let mut next = move || -> String{bytes.by_ref().map(|r|r.unwrap() as char).skip_while(|c|c.is_whitespace()).take_while(|c|!c.is_whitespace()).collect()};input_inner!{next, $($r)*}};}macro_rules! input_inner {($next:expr) => {};($next:expr, ) => {};($next:expr, $var:ident : $t:tt $($r:tt)*) => {let $var = read_value!($next, $t);input_inner!{$next $($r)*}};}macro_rules! read_value {($next:expr, ( $($t:tt),* )) => {( $(read_value!($next, $t)),* )};($next:expr, [ $t:tt ; $len:expr ]) => {(0..$len).map(|_|read_value!($next, $t)).collect::<Vec<_>>()};($next:expr, chars) => {read_value!($next, String).chars().collect::<Vec<char>>()};($next:expr,usize1) => {read_value!($next, usize) - 1};($next:expr, $t:ty) => {$next().parse::<$t>().expect("Parse error")};}/*<url:https://yukicoder.me/problems/no/193>問題文=============================================================================================================================解説=============================================================================================================================*/fn get_value(S:&str) -> i32{let mut ret = 0;let L = S.len();let S = S.as_bytes();if S[0 as usize] == '+' as u8 || S[0 as usize] == '-' as u8 || S[L-1] == '+' as u8 || S[L-1] == '-' as u8 {return i32::min_value();}let mut plus = true;let mut now = 0;for i in 0..L{if S[i] == '+' as u8 || S[i] == '-' as u8{if plus{ret += now;}else{ret -= now;}if S[i] =='+' as u8{plus = true;}else{plus = false;}now = 0;}else{now *= 10;now += S[i] as i32 - '0' as i32;}}if plus{ret += now;}else{ret -= now;}return ret;}fn main(){input!(S:String);let Len = S.len();let S:String = S.repeat(2);let mut ans = i32::min_value();for i in 0..Len{let T = S.clone();ans = max(ans,get_value(&T[i..i+Len].to_string()));}println!("{}",ans);}