結果
問題 | No.2234 palindromer |
ユーザー | Moss_Local |
提出日時 | 2023-03-03 21:52:34 |
言語 | Rust (1.77.0 + proconio) |
結果 |
AC
|
実行時間 | 1 ms / 2,000 ms |
コード長 | 6,317 bytes |
コンパイル時間 | 15,385 ms |
コンパイル使用メモリ | 378,020 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-09-17 22:48:20 |
合計ジャッジ時間 | 13,215 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 1 ms
5,248 KB |
testcase_01 | AC | 1 ms
5,376 KB |
testcase_02 | AC | 1 ms
5,376 KB |
testcase_03 | AC | 1 ms
5,376 KB |
testcase_04 | AC | 1 ms
5,376 KB |
testcase_05 | AC | 1 ms
5,376 KB |
testcase_06 | AC | 0 ms
5,376 KB |
testcase_07 | AC | 0 ms
5,376 KB |
testcase_08 | AC | 1 ms
5,376 KB |
testcase_09 | AC | 1 ms
5,376 KB |
testcase_10 | AC | 1 ms
5,376 KB |
testcase_11 | AC | 1 ms
5,376 KB |
testcase_12 | AC | 1 ms
5,376 KB |
testcase_13 | AC | 1 ms
5,376 KB |
testcase_14 | AC | 1 ms
5,376 KB |
testcase_15 | AC | 1 ms
5,376 KB |
コンパイルメッセージ
warning: unnecessary parentheses around type --> src/main.rs:64:15 | 64 | fn readi() -> (i64) { | ^ ^ | = note: `#[warn(unused_parens)]` on by default help: remove these parentheses | 64 - fn readi() -> (i64) { 64 + fn readi() -> i64 { | warning: unused variable: `last2` --> src/main.rs:190:17 | 190 | let mut last2 = v[n - i..n].to_vec(); | ^^^^^ help: if this is intentional, prefix it with an underscore: `_last2` | = note: `#[warn(unused_variables)]` on by default warning: variable does not need to be mutable --> src/main.rs:183:9 | 183 | let mut v: Vec<char> = read::<String>().chars().map(|c| c as char).collect(); | ----^ | | | help: remove this `mut` | = note: `#[warn(unused_mut)]` on by default warning: variable does not need to be mutable --> src/main.rs:189:13 | 189 | let mut last = v[n - i..n].to_vec(); | ----^^^^ | | | help: remove this `mut` warning: variable does not need to be mutable --> src/main.rs:190:13 | 190 | let mut last2 = v[n - i..n].to_vec(); | ----^^^^^ | | | help: remove this `mut`
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::*; 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 MOD: i64 = 1000000007; const MOD: i64 = 998244353; const UMOD: usize = MOD as usize; const M_PI: f64 = 3.14159265358979323846; // 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) => { println!("{}", $x); }; } macro_rules! d { ($x:expr) => { println!("{:?}", $x); }; } #[allow(unused_macros)] pub mod macros { macro_rules! min { ($x: expr) => { $x }; ($x: expr, $($xs: expr),+) => {{ let y = macros::min!($($xs),+); std::cmp::min($x, y) } }} macro_rules! max { ($x: expr) => { $x }; ($x: expr, $($xs: expr),+) => {{ let y = macros::max!($($xs),+); std::cmp::max($x, y) } }} macro_rules! chmin { ($x: expr, $($xs: expr),+) => {{ let y = macros::min!($($xs),+); if $x > y { $x = y; true } else { false } }}} macro_rules! chmax { ($x: expr, $($xs: expr),+) => {{ let y = macros::max!($($xs),+); if $x < y { $x = y; true } else { false } }}} macro_rules! multi_vec { ($element: expr; ($len: expr, $($lens: expr),*)) => ( vec![macros::multi_vec![$element; ($($lens),*)]; $len] ); ($element: expr; ($len: expr)) => ( vec![$element; $len] ); } macro_rules! multi_box_array { ($element: expr; ($len: expr, $($lens: expr),*)) => ( vec![macros::multi_box_array![$element; ($($lens),*)]; $len].into_boxed_slice() ); ($element: expr; ($len: expr)) => ( vec![$element; $len].into_boxed_slice() ); } #[allow(unused_imports)] pub(super) use {chmax, chmin, max, min, multi_box_array, multi_vec}; } use macros::*; fn main() { solve(); } // use str::Chars; #[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 readi() -> (i64) { let mut str = String::new(); let _ = stdin().read_line(&mut str).unwrap(); let mut iter = str.split_whitespace(); iter.next().unwrap().parse::<i64>().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 str = String::new(); let _ = stdin().read_line(&mut str).unwrap(); let mut iter = str.split_whitespace(); ( iter.next().unwrap().parse::<i64>().unwrap(), iter.next().unwrap().parse::<i64>().unwrap(), ) } #[allow(dead_code)] fn readiii() -> (i64, i64, i64) { let mut str = String::new(); let _ = stdin().read_line(&mut str).unwrap(); let mut iter = str.split_whitespace(); ( iter.next().unwrap().parse::<i64>().unwrap(), iter.next().unwrap().parse::<i64>().unwrap(), iter.next().unwrap().parse::<i64>().unwrap(), ) } #[allow(dead_code)] fn readuu() -> (usize, usize) { let mut str = String::new(); let _ = stdin().read_line(&mut str).unwrap(); let mut iter = str.split_whitespace(); ( iter.next().unwrap().parse::<usize>().unwrap(), iter.next().unwrap().parse::<usize>().unwrap(), ) } #[allow(dead_code)] fn readff() -> (f64, f64) { let mut str = String::new(); let _ = stdin().read_line(&mut str).unwrap(); let mut iter = str.split_whitespace(); ( iter.next().unwrap().parse::<f64>().unwrap(), iter.next().unwrap().parse::<f64>().unwrap(), ) } fn readcc() -> (char, char) { let mut str = String::new(); let _ = stdin().read_line(&mut str).unwrap(); let mut iter = str.split_whitespace(); ( iter.next().unwrap().parse::<char>().unwrap(), iter.next().unwrap().parse::<char>().unwrap(), ) } fn readuuu() -> (usize, usize, usize) { let mut str = String::new(); let _ = stdin().read_line(&mut str).unwrap(); let mut iter = str.split_whitespace(); ( iter.next().unwrap().parse::<usize>().unwrap(), iter.next().unwrap().parse::<usize>().unwrap(), iter.next().unwrap().parse::<usize>().unwrap(), ) } #[allow(dead_code)] fn readiiii() -> (i64, i64, i64, i64) { let mut str = String::new(); let _ = stdin().read_line(&mut str).unwrap(); let mut iter = str.split_whitespace(); ( iter.next().unwrap().parse::<i64>().unwrap(), iter.next().unwrap().parse::<i64>().unwrap(), iter.next().unwrap().parse::<i64>().unwrap(), iter.next().unwrap().parse::<i64>().unwrap(), ) } #[allow(dead_code)] fn readuuuu() -> (usize, usize, usize, usize) { let mut str = String::new(); let _ = stdin().read_line(&mut str).unwrap(); let mut iter = str.split_whitespace(); ( iter.next().unwrap().parse::<usize>().unwrap(), iter.next().unwrap().parse::<usize>().unwrap(), iter.next().unwrap().parse::<usize>().unwrap(), iter.next().unwrap().parse::<usize>().unwrap(), ) } fn check_paindrome(s: &Vec<char>) -> bool { let n = s.len(); for i in 0..n / 2 { if s[i] != s[n - i - 1] { return false; } } return true; } fn solve() { let mut v: Vec<char> = read::<String>().chars().map(|c| c as char).collect(); let v1 = v.clone(); let n = v.len(); for i in (1..=n).rev() { // last i char of vec<char> let mut last = v[n - i..n].to_vec(); let mut last2 = v[n - i..n].to_vec(); // d!((last2.clone(), check_paindrome(&last2.clone()))); if check_paindrome(&last) { let mut res = v1.clone(); for j in (0..n - i).rev() { res.push(v[j]); } let s = res.iter().collect::<String>(); println!("{}", s); return; } } return; }