結果
問題 | No.1701 half price |
ユーザー |
![]() |
提出日時 | 2021-11-04 14:18:28 |
言語 | Rust (1.83.0 + proconio) |
結果 |
AC
|
実行時間 | 109 ms / 3,000 ms |
コード長 | 5,307 bytes |
コンパイル時間 | 12,410 ms |
コンパイル使用メモリ | 377,028 KB |
実行使用メモリ | 5,248 KB |
最終ジャッジ日時 | 2024-10-14 12:24:38 |
合計ジャッジ時間 | 13,809 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 2 |
other | AC * 20 |
コンパイルメッセージ
warning: unused variable: `n`
--> src/main.rs:11:9
|
11 | n:usize,w:i64
| ^
|
help: `n` is captured in macro and introduced a unused variable
--> src/main.rs:69:17
|
10 | / inputv! {
11 | | n:usize,w:i64
12 | | }
| |_____- in this macro invocation
...
69 | let t = buf_split_result.parse().unwrap();
| ^^
= note: `#[warn(unused_variables)]` on by default
= note: this warning originates in the macro `input_internal` which comes from the expansion of the macro `inputv` (in Nightly builds, run with -Z macro-backtrace for more info)
ソースコード
#[allow(unused_imports)]use std::io::{stdout, BufWriter, Write};use std::collections::HashSet;fn main() {let out = stdout();let mut out = BufWriter::new(out.lock());inputv! {n:usize,w:i64}let a = input_vector::<i64>();let mut set = HashSet::new();let mut ans = 0;for mut i in 0..3_usize.pow(a.len() as u32) {let mut buf = 0;let mut k = 0;for j in 0..a.len() {if i % 3 == 1 {buf += a[j];k = (k << 1) + 1;} else if i % 3 == 2 {buf += a[j] / 2;k = (k << 1) + 1;} else {k <<= 1;}i /= 3;}if buf == w && !set.contains(&k) && k != 0 {ans += 1;set.insert(k);}}writeln!(out, "{}", ans).unwrap();}//https://github.com/manta1130/competitive-template-rsuse input::*;pub mod input {use std::cell::RefCell;use std::io;pub const SPLIT_DELIMITER: char = ' ';pub use std::io::prelude::*;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: $t = buf_split_result.parse().unwrap();};}pub fn input_buffer_is_empty() -> bool {let mut empty = false;INPUT_BUFFER.with(|p| {if p.borrow().len() == 0 {empty = true;}});empty}#[macro_export]macro_rules! inputv {($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>whereT: 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>whereT: 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<_>>()}}}