結果
| 問題 |
No.1233 割り切れない気持ち
|
| コンテスト | |
| ユーザー |
manta1130
|
| 提出日時 | 2022-03-22 22:32:36 |
| 言語 | Rust (1.83.0 + proconio) |
| 結果 |
AC
|
| 実行時間 | 47 ms / 3,153 ms |
| コード長 | 5,732 bytes |
| コンパイル時間 | 13,651 ms |
| コンパイル使用メモリ | 382,884 KB |
| 実行使用メモリ | 18,240 KB |
| 最終ジャッジ日時 | 2024-10-10 16:57:36 |
| 合計ジャッジ時間 | 15,394 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 * 2 |
| other | AC * 39 |
コンパイルメッセージ
warning: variable does not need to be mutable --> src/main.rs:13:9 | 13 | let mut a = input_vector::<usize>(); | ----^ | | | help: remove this `mut` | = note: `#[warn(unused_mut)]` on by default warning: variable does not need to be mutable --> src/main.rs:14:9 | 14 | let mut s = a.iter().sum::<usize>(); | ----^ | | | help: remove this `mut`
ソースコード
#[allow(unused_imports)]
use std::io::{stdout, BufWriter, Write};
use std::collections::HashMap;
fn main() {
let out = stdout();
let mut out = BufWriter::new(out.lock());
inputv! {
n:usize,
}
let mut a = input_vector::<usize>();
let mut s = a.iter().sum::<usize>();
let mut ans = n * s;
let max = *a.iter().max().unwrap();
let mut arr = vec![0; max * 2 + 1];
for &i in &a {
arr[i] += 1;
}
let sumarr = [0]
.iter()
.cloned()
.chain(arr.iter().scan(0, |state, &x| {
*state += x;
Some(*state)
}))
.collect::<Vec<_>>();
let mut memo = HashMap::new();
for i in a {
if memo.contains_key(&i) {
ans -= memo[&i];
continue;
}
let mut buf = 0;
for j in 1.. {
if (j + 1) * i > max * 2 + 1 {
break;
}
buf += j * (sumarr[(j + 1) * i] - sumarr[j * i]);
// dbg!(j, j * (sumarr[(j + 1) * i] - sumarr[j * i]));
}
//dbg!(i * buf);
let m = i * buf;
memo.insert(i, m);
ans -= m;
}
writeln!(out, "{}", ans).unwrap();
}
//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::*;
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| {
while 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())
.filter(|q| q.len() > 0)
.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| {
while 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())
.filter(|q| q.len() > 0)
.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>
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