結果
| 問題 | No.1623 三角形の制作 |
| ユーザー |
 ngtkana
|
| 提出日時 | 2021-07-23 21:39:21 |
| 言語 | Rust (1.77.0 + proconio) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 12,507 bytes |
| コンパイル時間 | 15,968 ms |
| コンパイル使用メモリ | 379,852 KB |
| 実行使用メモリ | 19,636 KB |
| 最終ジャッジ日時 | 2024-07-18 17:17:26 |
| 合計ジャッジ時間 | 20,114 ms |
|
ジャッジサーバーID （参考情報） |
judge2 / judge5 |
（要ログイン）
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
10,752 KB |
| testcase_01 | AC | 1 ms
5,376 KB |
| testcase_02 | TLE | - |
| testcase_03 | -- | - |
| testcase_04 | -- | - |
| testcase_05 | -- | - |
| testcase_06 | -- | - |
| testcase_07 | -- | - |
| testcase_08 | -- | - |
| testcase_09 | -- | - |
| testcase_10 | -- | - |
| testcase_11 | -- | - |
| testcase_12 | -- | - |
| testcase_13 | -- | - |
| testcase_14 | -- | - |
| testcase_15 | -- | - |
| testcase_16 | -- | - |
| testcase_17 | -- | - |
| testcase_18 | -- | - |
| testcase_19 | -- | - |
| testcase_20 | -- | - |
コンパイルメッセージ
warning: unused imports: `Leaf`, `Tuple`, `VecLen`
--> src/main.rs:111:27
|
111 | multi_token::{Leaf, Parser, ParserTuple, RawTuple, Tuple, VecLen},
| ^^^^ ^^^^^ ^^^^^^
|
= note: `#[warn(unused_imports)]` on by default
warning: unused import: `with_str`
--> src/main.rs:349:35
|
349 | pub use self::i::{with_stdin, with_str};
| ^^^^^^^^
warning: unused imports: `ParserTuple`, `Parser`, `RawTuple`, `Token`, `Usize1`
--> src/main.rs:351:28
|
351 | pub use super::i::{Parser, ParserTuple, RawTuple, Token, Usize1};
| ^^^^^^ ^^^^^^^^^^^ ^^^^^^^^ ^^^^^ ^^^^^^
ソースコード
#[allow(unused_imports)]
#[cfg(feature = "dbg")]
use dbg::lg;
fn main() {
let mut buf = ngtio::with_stdin();
let n = buf.usize();
let a = buf.vec::<usize>(n);
let mut count = vec![0; a.iter().max().unwrap() + 1];
a.iter().for_each(|&x| count[x] += 1);
accum::add(&mut count);
count.insert(0, 0);
let b = buf.vec::<usize>(n);
let c = buf.vec::<usize>(n);
let ans = b
.iter()
.flat_map(|&y| c.iter().map(move |&z| [y, z]))
.map(|[y, z]| count[(y + z).min(count.len() - 1)] - count[y.max(z).min(count.len() - 1)])
.sum::<u64>();
println!("{}", ans);
}
// accum {{{
#[allow(dead_code)]
mod accum {
use std::{
cmp::Ord,
ops::{
AddAssign, BitAndAssign, BitOrAssign, BitXorAssign, DivAssign, MulAssign, SubAssign,
},
};
pub fn add<T: Copy + AddAssign>(a: &mut [T]) {
for_each_mut(a, |&mut x, y| *y += x);
}
pub fn add_inv<T: Copy + SubAssign>(a: &mut [T]) {
rfor_each_mut(a, |&mut x, y| *y -= x);
}
pub fn mul<T: Copy + MulAssign>(a: &mut [T]) {
for_each_mut(a, |&mut x, y| *y *= x);
}
pub fn mul_inv<T: Copy + DivAssign>(a: &mut [T]) {
rfor_each_mut(a, |&mut x, y| *y /= x);
}
// -- ord
pub fn min<T: Copy + Ord>(a: &mut [T]) {
for_each_mut(a, |&mut x, y| *y = x.min(*y));
}
pub fn max<T: Copy + Ord>(a: &mut [T]) {
for_each_mut(a, |&mut x, y| *y = x.max(*y));
}
// -- bit
pub fn xor<T: Copy + BitXorAssign>(a: &mut [T]) {
for_each_mut(a, |&mut x, y| *y ^= x);
}
pub fn xor_inv<T: Copy + BitXorAssign>(a: &mut [T]) {
rfor_each_mut(a, |&mut x, y| *y ^= x);
}
pub fn or<T: Copy + BitOrAssign>(a: &mut [T]) {
for_each_mut(a, |&mut x, y| *y |= x);
}
pub fn and<T: Copy + BitAndAssign>(a: &mut [T]) {
for_each_mut(a, |&mut x, y| *y &= x);
}
// -- for_each
pub fn for_each<T>(a: &[T], mut f: impl FnMut(&T, &T)) {
if !a.is_empty() {
for i in 1..a.len() {
let (left, right) = a.split_at(i);
f(left.last().unwrap(), right.first().unwrap());
}
}
}
pub fn rfor_each<T>(a: &[T], mut f: impl FnMut(&T, &T)) {
if !a.is_empty() {
for i in (1..a.len()).rev() {
let (left, right) = a.split_at(i);
f(left.last().unwrap(), right.first().unwrap());
}
}
}
pub fn for_each_mut<T>(a: &mut [T], mut f: impl FnMut(&mut T, &mut T)) {
if !a.is_empty() {
for i in 1..a.len() {
let (left, right) = a.split_at_mut(i);
f(left.last_mut().unwrap(), right.first_mut().unwrap());
}
}
}
pub fn rfor_each_mut<T>(a: &mut [T], mut f: impl FnMut(&mut T, &mut T)) {
if !a.is_empty() {
for i in (1..a.len()).rev() {
let (left, right) = a.split_at_mut(i);
f(left.last_mut().unwrap(), right.first_mut().unwrap());
}
}
}
}
// }}}
// template {{{
#[cfg(not(feature = "dbg"))]
#[allow(unused_macros)]
#[macro_export]
macro_rules! lg {
($($expr:expr),*) => {};
}
#[allow(dead_code)]
mod ngtio {
mod i {
pub use self::{
multi_token::{Leaf, Parser, ParserTuple, RawTuple, Tuple, VecLen},
token::{Token, Usize1},
};
use std::{
io::{self, BufRead},
iter,
};
pub fn with_stdin() -> Tokenizer<io::BufReader<io::Stdin>> {
io::BufReader::new(io::stdin()).tokenizer()
}
pub fn with_str(src: &str) -> Tokenizer<&[u8]> {
src.as_bytes().tokenizer()
}
pub struct Tokenizer<S: BufRead> {
queue: Vec<String>, // FIXME: String のみにすると速そうです。
scanner: S,
}
macro_rules! prim_method {
($name:ident: $T:ty) => {
pub fn $name(&mut self) -> $T {
<$T>::leaf().parse(self)
}
};
($name:ident) => {
prim_method!($name: $name);
};
}
macro_rules! prim_methods {
($name:ident: $T:ty; $($rest:tt)*) => {
prim_method!($name:$T);
prim_methods!($($rest)*);
};
($name:ident; $($rest:tt)*) => {
prim_method!($name);
prim_methods!($($rest)*);
};
() => ()
}
impl<S: BufRead> Tokenizer<S> {
pub fn token(&mut self) -> String {
self.load();
self.queue.pop().expect("入力が終了したのですが。")
}
pub fn new(scanner: S) -> Self {
Self {
queue: Vec::new(),
scanner,
}
}
fn load(&mut self) {
while self.queue.is_empty() {
let mut s = String::new();
let length = self.scanner.read_line(&mut s).unwrap(); // 入力が UTF-8 でないときにエラーだそうです。
if length == 0 {
break;
}
self.queue = s.split_whitespace().rev().map(str::to_owned).collect();
}
}
pub fn skip_line(&mut self) {
assert!(
self.queue.is_empty(),
"行の途中で呼ばないでいただきたいです。現在のトークンキュー: {:?}",
&self.queue
);
self.load();
}
pub fn end(&mut self) {
self.load();
assert!(self.queue.is_empty(), "入力はまだあります！");
}
pub fn parse<T: Token>(&mut self) -> T::Output {
T::parse(&self.token())
}
pub fn parse_collect<T: Token, B>(&mut self, n: usize) -> B
where
B: iter::FromIterator<T::Output>,
{
iter::repeat_with(|| self.parse::<T>()).take(n).collect()
}
pub fn tuple<T: RawTuple>(&mut self) -> <T::LeafTuple as Parser>::Output {
T::leaf_tuple().parse(self)
}
pub fn vec<T: Token>(&mut self, len: usize) -> Vec<T::Output> {
T::leaf().vec(len).parse(self)
}
pub fn vec_tuple<T: RawTuple>(
&mut self,
len: usize,
) -> Vec<<T::LeafTuple as Parser>::Output> {
T::leaf_tuple().vec(len).parse(self)
}
pub fn vec2<T: Token>(&mut self, height: usize, width: usize) -> Vec<Vec<T::Output>> {
T::leaf().vec(width).vec(height).parse(self)
}
pub fn vec2_tuple<T>(
&mut self,
height: usize,
width: usize,
) -> Vec<Vec<<T::LeafTuple as Parser>::Output>>
where
T: RawTuple,
{
T::leaf_tuple().vec(width).vec(height).parse(self)
}
prim_methods! {
u8; u16; u32; u64; u128; usize;
i8; i16; i32; i64; i128; isize;
f32; f64;
char; string: String;
}
}
mod token {
use super::multi_token::Leaf;
use std::{any, fmt, marker, str};
pub trait Token: Sized {
type Output;
fn parse(s: &str) -> Self::Output;
fn leaf() -> Leaf<Self> {
Leaf(marker::PhantomData)
}
}
impl<T> Token for T
where
T: str::FromStr,
<Self as str::FromStr>::Err: fmt::Debug,
{
type Output = Self;
fn parse(s: &str) -> Self::Output {
s.parse().unwrap_or_else(|_| {
panic!("Parse error!: ({}: {})", s, any::type_name::<Self>(),)
})
}
}
pub struct Usize1 {}
impl Token for Usize1 {
type Output = usize;
fn parse(s: &str) -> Self::Output {
usize::parse(s)
.checked_sub(1)
.expect("Parse error! (Zero substruction error of Usize1)")
}
}
}
mod multi_token {
use super::{Token, Tokenizer};
use std::{io::BufRead, iter, marker};
pub trait Parser: Sized {
type Output;
fn parse<S: BufRead>(&self, server: &mut Tokenizer<S>) -> Self::Output;
fn vec(self, len: usize) -> VecLen<Self> {
VecLen { len, elem: self }
}
}
pub struct Leaf<T>(pub(super) marker::PhantomData<T>);
impl<T: Token> Parser for Leaf<T> {
type Output = T::Output;
fn parse<S: BufRead>(&self, server: &mut Tokenizer<S>) -> T::Output {
server.parse::<T>()
}
}
pub struct VecLen<T> {
pub len: usize,
pub elem: T,
}
impl<T: Parser> Parser for VecLen<T> {
type Output = Vec<T::Output>;
fn parse<S: BufRead>(&self, server: &mut Tokenizer<S>) -> Self::Output {
iter::repeat_with(|| self.elem.parse(server))
.take(self.len)
.collect()
}
}
pub trait RawTuple {
type LeafTuple: Parser;
fn leaf_tuple() -> Self::LeafTuple;
}
pub trait ParserTuple {
type Tuple: Parser;
fn tuple(self) -> Self::Tuple;
}
pub struct Tuple<T>(pub T);
macro_rules! impl_tuple {
($($t:ident: $T:ident),*) => {
impl<$($T),*> Parser for Tuple<($($T,)*)>
where
$($T: Parser,)*
{
type Output = ($($T::Output,)*);
#[allow(unused_variables)]
fn parse<S: BufRead >(&self, server: &mut Tokenizer<S>) -> Self::Output {
match self {
Tuple(($($t,)*)) => {
($($t.parse(server),)*)
}
}
}
}
impl<$($T: Token),*> RawTuple for ($($T,)*) {
type LeafTuple = Tuple<($(Leaf<$T>,)*)>;
fn leaf_tuple() -> Self::LeafTuple {
Tuple(($($T::leaf(),)*))
}
}
impl<$($T: Parser),*> ParserTuple for ($($T,)*) {
type Tuple = Tuple<($($T,)*)>;
fn tuple(self) -> Self::Tuple {
Tuple(self)
}
}
};
}
impl_tuple!();
impl_tuple!(t1: T1);
impl_tuple!(t1: T1, t2: T2);
impl_tuple!(t1: T1, t2: T2, t3: T3);
impl_tuple!(t1: T1, t2: T2, t3: T3, t4: T4);
impl_tuple!(t1: T1, t2: T2, t3: T3, t4: T4, t5: T5);
impl_tuple!(t1: T1, t2: T2, t3: T3, t4: T4, t5: T5, t6: T6);
impl_tuple!(t1: T1, t2: T2, t3: T3, t4: T4, t5: T5, t6: T6, t7: T7);
impl_tuple!(
t1: T1,
t2: T2,
t3: T3,
t4: T4,
t5: T5,
t6: T6,
t7: T7,
t8: T8
);
}
trait Scanner: BufRead + Sized {
fn tokenizer(self) -> Tokenizer<Self> {
Tokenizer::new(self)
}
}
impl<R: BufRead> Scanner for R {}
}
pub use self::i::{with_stdin, with_str};
mod prelude {
pub use super::i::{Parser, ParserTuple, RawTuple, Token, Usize1};
}
}
// }}}