結果
| 問題 | No.1557 Binary Variable |
| ユーザー |
 Moss_Local
|
| 提出日時 | 2021-06-25 22:34:19 |
| 言語 | Rust (1.83.0 + proconio) |
| 結果 |
AC
|
| 実行時間 | 305 ms / 2,000 ms |
| コード長 | 8,152 bytes |
| コンパイル時間 | 13,087 ms |
| コンパイル使用メモリ | 402,140 KB |
| 実行使用メモリ | 24,284 KB |
| 最終ジャッジ日時 | 2024-06-25 08:38:48 |
| 合計ジャッジ時間 | 21,739 ms |
|
ジャッジサーバーID （参考情報） |
judge5 / judge3 |
（要ログイン）
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 34 |
コンパイルメッセージ
warning: unnecessary parentheses around type
--> src/main.rs:67:15
|
67 | fn readi() -> (i64) {
| ^ ^
|
= note: `#[warn(unused_parens)]` on by default
help: remove these parentheses
|
67 - fn readi() -> (i64) {
67 + fn readi() -> i64 {
|
warning: unnecessary parentheses around match arm expression
--> src/main.rs:229:46
|
229 | std::ops::Bound::Included(&x) => (x + 1),
| ^ ^
|
help: remove these parentheses
|
229 - std::ops::Bound::Included(&x) => (x + 1),
229 + std::ops::Bound::Included(&x) => x + 1,
|
warning: unused variable: `i`
--> src/main.rs:300:9
|
300 | for i in 0..m {
| ^ help: if this is intentional, prefix it with an underscore: `_i`
|
= note: `#[warn(unused_variables)]` on by default
ソースコード
// -*- coding:utf-8-unix -*-// #![feature(map_first_last)]#![allow(dead_code)]#![allow(unused_imports)]#![allow(unused_macros)]use std::collections::*;use std::convert::*;use std::convert::{From, Into};use std::fmt::Debug;use std::fs::File;use std::io::prelude::*;use std::io::*;use std::marker::Copy;use std::mem::*;use std::ops::Bound::*;use std::ops::{Add, Mul, Neg, Sub};use std::str;use std::thread::park_timeout;use std::vec;use std::{cmp, process::Output};use std::{cmp::Ordering, env::consts::DLL_PREFIX};use std::{cmp::Ordering::*, f32::consts::PI};const INF: i64 = 1223372036854775807;const UINF: usize = INF as usize;const FINF: f64 = 122337203685.0;const INF128: i128 = 1223372036854775807000000000000;const LINF: i64 = 2147483647;const MOD: i64 = 1000000007;// const MOD: i64 = 998244353;// const MOD: i64 = INF;const UMOD: usize = MOD as usize;use std::cmp::*;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);};}macro_rules! dd {(x:expr) => {dbg!(x);};}// use str::Chars;// 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_vec2<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(),)}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(),)}#[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(),)}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(),)}#[allow(dead_code)]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 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 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(),)}pub struct SEG<M: Monoid> {n: usize,buf: Vec<M::T>,}impl<M: Monoid> SEG<M> {#[allow(dead_code)]pub fn new(n: usize) -> SEG<M> {SEG {n,buf: vec![M::id(); 2 * n],}}#[allow(dead_code)]pub fn update(&mut self, k: usize, a: M::T) {let mut k = k + self.n;self.buf[k] = a;while k > 0 {k >>= 1;self.buf[k] = M::op(&self.buf[k << 1], &self.buf[(k << 1) | 1]);}}#[allow(dead_code)]pub fn add(&mut self, k: usize, a: &M::T) {let mut k = k + self.n;self.buf[k] = M::op(&self.buf[k], a);while k > 0 {k >>= 1;self.buf[k] = M::op(&self.buf[k << 1], &self.buf[(k << 1) | 1]);}}#[allow(dead_code)]pub fn get(&self, i: usize) -> M::T {self.query(i, i + 1)}#[allow(dead_code)]pub fn query_range<R: std::ops::RangeBounds<usize>>(&self, range: R) -> M::T {let l = match range.start_bound() {std::ops::Bound::Excluded(&x) => {assert!(x > 0);x - 1}std::ops::Bound::Included(&x) => x,std::ops::Bound::Unbounded => 0,};let r = match range.end_bound() {std::ops::Bound::Excluded(&x) => x,std::ops::Bound::Included(&x) => (x + 1),std::ops::Bound::Unbounded => self.n,};self.query(l, r)}#[allow(dead_code)]pub fn query(&self, l: usize, r: usize) -> M::T {let mut vl = M::id();let mut vr = M::id();let mut l = l + self.n;let mut r = r + self.n;while l < r {if l & 1 == 1 {vl = M::op(&vl, &self.buf[l]);l += 1;}if r & 1 == 1 {r -= 1;vr = M::op(&self.buf[r], &vr);}l >>= 1;r >>= 1;}M::op(&vl, &vr)}}pub trait Monoid {type T: Clone;fn id() -> Self::T;fn op(a: &Self::T, b: &Self::T) -> Self::T;}pub enum MON {}impl Monoid for MON {type T = usize;fn id() -> Self::T {1}fn op(a: &Self::T, b: &Self::T) -> Self::T {*a * *b}}fn vector_compression(vec: &mut Vec<usize>) -> Vec<usize> {let n = vec.len();let mut res = vec![0; n];let mut bt = BTreeMap::new();for i in 0..n {*bt.entry(vec[i]).or_insert(1) += 1;}let mut bt2 = BTreeMap::new();let mut cnt: usize = 0;for i in bt {bt2.insert(i.0, cnt);cnt += 1;}for i in 0..n {// let mut xx: usize = vec[i];res[i] = *bt2.get(&(vec[i])).unwrap();}return res;}fn solve() {let (n, m) = readuu();let mut vp = vec![(0, 0); 0];let mut vec = vec![];for i in 0..m {let (a, b) = readuu();vec.push(b);vec.push(a);}let vec = vector_compression(&mut vec);for i in 0..m {vp.push((vec[2 * i], vec[2 * i + 1]));}vp.sort();// println!("{:?}", vp.clone());let mut seg: SEG<MON> = SEG::new(401010);let mut res = n;for i in 0..m {let p = vp[i].0;let x = seg.query(vp[i].1, vp[i].0 + 1);if x != 0 {seg.update(p, 0);res -= 1;}}println!("{:?}", res);return;}fn main() {solve();}