#683470 (Rust) No.1625 三角形の質問

提出ソース

結果

問題	No.1625 三角形の質問
ユーザー	akiradeveloper
提出日時	2021-07-27 09:37:46
言語	Rust (1.77.0 + proconio)
結果	WA
実行時間	-
コード長	15,903 bytes
コンパイル時間	13,818 ms
コンパイル使用メモリ	402,456 KB
実行使用メモリ	35,500 KB
最終ジャッジ日時	2024-07-23 01:44:13
合計ジャッジ時間	24,100 ms
ジャッジサーバーID （参考情報）	judge3 / judge4

このコードへのチャレンジ
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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	WA	-
testcase_01	WA	-
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	--	-

権限があれば一括ダウンロードができます

コンパイルメッセージ

warning: unused variable: `out`
   --> src/main.rs:143:13
    |
143 |     let mut out = BufWriter::new(out.lock());
    |             ^^^ help: if this is intentional, prefix it with an underscore: `_out`
    |
    = note: `#[warn(unused_variables)]` on by default

warning: unused variable: `i`
   --> src/main.rs:160:9
    |
160 |     for i in 0..q { 
    |         ^ help: if this is intentional, prefix it with an underscore: `_i`

warning: unused variable: `x`
   --> src/main.rs:193:26
    |
193 |         if let Q::Q1(l,r,x) = q {
    |                          ^ help: if this is intentional, prefix it with an underscore: `_x`

warning: unused variable: `x`
   --> src/main.rs:208:26
    |
208 |         if let Q::Q1(l,r,x) = q {
    |                          ^ help: if this is intentional, prefix it with an underscore: `_x`

warning: unused variable: `n`
   --> src/main.rs:214:9
    |
214 |     let n = xy.len();
    |         ^ help: if this is intentional, prefix it with an underscore: `_n`

warning: variable does not need to be mutable
   --> src/main.rs:143:9
    |
143 |     let mut out = BufWriter::new(out.lock());
    |         ----^^^
    |         |
    |         help: remove this `mut`
    |
    = note: `#[warn(unused_mut)]` on by default

warning: fields `0` and `1` are never read
   --> src/main.rs:113:8
    |
113 |     Q2(i64,i64),
    |     -- ^^^ ^^^
    |     |
    |     fields in this variant
    |
    = note: `#[warn(dead_code)]` on by default
help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
    |
113 |     Q2((),()),
    |        ~~ ~~

warning: field `dcmp` is never read
   --> src/main.rs:441:5
    |
439 | struct CoordCompression {
    |        ---------------- field in this struct
440 |     comp: std::collections::HashMap<i64, usize>,
441 |     dcmp: std::collections::HashMap<usize, i64>,
    |     ^^^^

warning: method `decompress` is never used
   --> src/

ソースコード

raw source code

#[doc = " https://github.com/akiradeveloper/rust-comp-snippets"]
#[allow(unused_imports)]
use std::cmp::{max, min, Ordering};
#[allow(unused_imports)]
use std::collections::{BTreeMap, BTreeSet, BinaryHeap, HashMap, HashSet, VecDeque};
#[allow(unused_imports)]
use std::iter::FromIterator;
#[macro_export]
macro_rules ! chmax { ( $ x : expr , $ ( $ v : expr ) ,+ ) => { $ ( $ x = std :: cmp :: max ( $ x ,$ v ) ; ) + } ; }
#[macro_export]
macro_rules ! chmin { ( $ x : expr , $ ( $ v : expr ) ,+ ) => { $ ( $ x = std :: cmp :: min ( $ x ,$ v ) ; ) + } ; }
#[macro_export]
macro_rules ! max { ( $ x : expr ) => ( $ x ) ; ( $ x : expr , $ ( $ xs : expr ) ,+ ) => { std :: cmp :: max ( $ x , max ! ( $ ( $ xs ) ,+ ) ) } ; }
#[macro_export]
macro_rules ! min { ( $ x : expr ) => ( $ x ) ; ( $ x : expr , $ ( $ xs : expr ) ,+ ) => { std :: cmp :: min ( $ x , min ! ( $ ( $ xs ) ,+ ) ) } ; }
#[macro_export]
macro_rules ! dvec { ( $ t : expr ; $ len : expr ) => { vec ! [ $ t ; $ len ] } ; ( $ t : expr ; $ len : expr , $ ( $ rest : expr ) ,* ) => { vec ! [ dvec ! ( $ t ; $ ( $ rest ) ,* ) ; $ len ] } ; }
#[macro_export]
macro_rules ! cfor { ( ; $ ( $ rest : tt ) * ) => { cfor ! ( ( ) ; $ ( $ rest ) * ) } ; ( $ ( $ init : stmt ) ,+; ; $ ( $ rest : tt ) * ) => { cfor ! ( $ ( $ init ) ,+; ! false ; $ ( $ rest ) * ) } ; ( $ ( $ init : stmt ) ,+; $ cond : expr ; ; $ body : block ) => { cfor ! { $ ( $ init ) ,+; $ cond ; ( ) ; $ body } } ; ( $ ( $ init : stmt ) ,+; $ cond : expr ; $ ( $ step : expr ) ,+; $ body : block ) => { { $ ( $ init ; ) + while $ cond { let mut _first = true ; let mut _continue = false ; loop { if ! _first { _continue = true ; break } _first = false ; $ body } if ! _continue { break } $ ( $ step ; ) + } } } ; }
#[doc = " main"]
#[allow(unused_imports)]
use std::io::{stdin, stdout, BufWriter, Write};
#[macro_export]
macro_rules ! input { ( source = $ s : expr , $ ( $ r : tt ) * ) => { let mut parser = Parser :: from_str ( $ s ) ; input_inner ! { parser , $ ( $ r ) * } } ; ( parser = $ parser : ident , $ ( $ r : tt ) * ) => { input_inner ! { $ parser , $ ( $ r ) * } } ; ( new_stdin_parser = $ parser : ident , $ ( $ r : tt ) * ) => { let stdin = std :: io :: stdin ( ) ; let reader = std :: io :: BufReader :: new ( stdin . lock ( ) ) ; let mut $ parser = Parser :: new ( reader ) ; input_inner ! { $ parser , $ ( $ r ) * } } ; ( $ ( $ r : tt ) * ) => { input ! { new_stdin_parser = parser , $ ( $ r ) * } } ; }
#[macro_export]
macro_rules ! input_inner { ( $ parser : ident ) => { } ; ( $ parser : ident , ) => { } ; ( $ parser : ident , $ var : ident : $ t : tt $ ( $ r : tt ) * ) => { let $ var = read_value ! ( $ parser , $ t ) ; input_inner ! { $ parser $ ( $ r ) * } } ; }
#[macro_export]
macro_rules ! read_value { ( $ parser : ident , ( $ ( $ t : tt ) ,* ) ) => { ( $ ( read_value ! ( $ parser , $ t ) ) ,* ) } ; ( $ parser : ident , [ $ t : tt ; $ len : expr ] ) => { ( 0 ..$ len ) . map ( | _ | read_value ! ( $ parser , $ t ) ) . collect ::< Vec < _ >> ( ) } ; ( $ parser : ident , chars ) => { read_value ! ( $ parser , String ) . chars ( ) . collect ::< Vec < char >> ( ) } ; ( $ parser : ident , usize1 ) => { read_value ! ( $ parser , usize ) - 1 } ; ( $ parser : ident , $ t : ty ) => { $ parser . next ::<$ t > ( ) . expect ( "Parse error" ) } ; }
use std::io;
use std::io::BufRead;
use std::str;
pub struct Parser<R> {
    reader: R,
    buf: Vec<u8>,
    pos: usize,
}
impl Parser<io::Empty> {
    pub fn from_str(s: &str) -> Parser<io::Empty> {
	Parser {
	    reader: io::empty(),
	    buf: s.as_bytes().to_vec(),
	    pos: 0,
	}
    }
}
impl<R: BufRead> Parser<R> {
    pub fn new(reader: R) -> Parser<R> {
	Parser {
	    reader: reader,
	    buf: vec![],
	    pos: 0,
	}
    }
    pub fn update_buf(&mut self) {
	self.buf.clear();
	self.pos = 0;
	loop {
	    let (len, complete) = {
		let buf2 = self.reader.fill_buf().unwrap();
		self.buf.extend_from_slice(buf2);
		let len = buf2.len();
		if len == 0 {
		    break;
		}
		(len, buf2[len - 1] <= 0x20)
	    };
	    self.reader.consume(len);
	    if complete {
		break;
	    }
	}
    }
    pub fn next<T: str::FromStr>(&mut self) -> Result<T, T::Err> {
	loop {
	    let mut begin = self.pos;
	    while begin < self.buf.len() && (self.buf[begin] <= 0x20) {
		begin += 1;
	    }
	    let mut end = begin;
	    while end < self.buf.len() && (self.buf[end] > 0x20) {
		end += 1;
	    }
	    if begin != self.buf.len() {
		self.pos = end;
		return str::from_utf8(&self.buf[begin..end]).unwrap().parse::<T>();
	    } else {
		self.update_buf();
	    }
	}
    }
}
#[allow(unused_macros)]
macro_rules ! debug { ( $ ( $ a : expr ) ,* ) => { eprintln ! ( concat ! ( $ ( stringify ! ( $ a ) , " = {:?}, " ) ,* ) , $ ( $ a ) ,* ) ; } }
#[doc = " https://github.com/hatoo/competitive-rust-snippets"]
const BIG_STACK_SIZE: bool = true;
#[allow(dead_code)]
fn main() {
    use std::thread;
    if BIG_STACK_SIZE {
	thread::Builder::new()
	    .stack_size(32 * 1024 * 1024)
	    .name("solve".into())
	    .spawn(solve)
	    .unwrap()
	    .join()
	    .unwrap();
    } else {
	solve();
    }
}
enum Q {
    Q1(i64,i64,i64),
    Q2(i64,i64),
}
struct Tri {
    x0:i64,y0:i64,
    x1:i64,y1:i64,
    x2:i64,y2:i64,
}
impl Tri {
    fn area(&self) -> i64 {
        let a = (self.x1-self.x0, self.y1-self.y0);
        let b = (self.x2-self.x0, self.y2-self.y0);
        i64::abs(a.0*b.1 - a.1*b.0)
    }
    fn left(&self) -> i64 {
        let mut v = 1<<60;
        chmin!(v,self.x0);
        chmin!(v,self.x1);
        chmin!(v,self.x2);
        v
    }
    fn right(&self) -> i64 {
        let mut v = 0;
        chmax!(v,self.x0);
        chmax!(v,self.x1);
        chmax!(v,self.x2);
        v
    }
}
fn solve() {
    let out = stdout();
    let mut out = BufWriter::new(out.lock());
    input!{
        new_stdin_parser=parser,
        n:usize,q:usize,
        tris:[(i64,i64,i64,i64,i64,i64);n],
    }
    let mut T = vec![];
    for tri in tris {
        let tri = Tri {
            x0:tri.0, y0:tri.1,
            x1:tri.2, y1:tri.3,
            x2:tri.4, y2:tri.5,
        };
        T.push((tri.left(), tri.right(), tri.area()));
    }

    let mut Q = vec![];
    for i in 0..q { 
        input!{
            parser=parser,
            ty:usize,
        }
        if ty == 1 {
            input!{
                parser=parser,
                tri:(i64,i64,i64,i64,i64,i64),
            } 
            let tri = Tri {
                x0:tri.0, y0:tri.1,
                x1:tri.2, y1:tri.3,
                x2:tri.4, y2:tri.5,
            };
            let q = Q::Q1(tri.left(), tri.right(), tri.area());
            Q.push(q);
        } else {
            input!{
                parser=parser,
                l:i64,r:i64,
            }
            let q = Q::Q2(l,r);
            Q.push(q);
        }
    }
    let mut X = vec![];
    let mut Y = vec![];
    for t in &T {
        X.push(t.0);
        Y.push(t.1);
    }
    for q in &Q {
        if let Q::Q1(l,r,x) = q {
            X.push(*l);
            Y.push(*r);
        }
    }
    let xcomp = CoordCompression::new(&X, 0);
    let ycomp = CoordCompression::new(&Y, 0);

    let mut xy = vec![vec![]; xcomp.comp.len()];
    for t in &T {
        let i = xcomp.compress(t.0);
        let j = ycomp.compress(t.1);
        xy[i].push(j);
    }
    for q in &Q {
        if let Q::Q1(l,r,x) = q {
            let i = xcomp.compress(*l);
            let j = ycomp.compress(*r);
            xy[i].push(j);
        }
    }
    let n = xy.len();
    let mut seg: SEG2d<MAX> = SEG2d::new(xy);
    for t in &T {
        let i = xcomp.compress(t.0);
        let j = ycomp.compress(t.1);
        seg.update(i,j,t.2);
    }
    // for q in &Q {
    //     match q {
    //         Q::Q1(l,r,x) => {
    //             let i = xcomp.compress(*l);
    //             let j = ycomp.compress(*r);
    //             seg.update(i,j,*x);
    //         },
    //         Q::Q2(l,r) => {
    //             let i = xcomp.compress(*l);
    //             let j = ycomp.compress(*r);
    //             let maxv = seg.query(i,n,0,j+1);
    //             writeln!(out,"{}",maxv);
    //         }
    //     }
    // }
}
pub struct SEG2d<M: Monoid> {
    tree: SEGTree,
    segs: Vec<SEG<M>>,
    index: Vec<Vec<usize>>,
}
impl<M: Monoid> SEG2d<M> {
    pub fn new(xy: Vec<Vec<usize>>) -> Self {
        struct SetAdd {}
        impl Monoid for SetAdd {
            type T = Vec<usize>;
            fn id() -> Self::T {
                vec![]
            }
            fn op(a: &Self::T, b: &Self::T) -> Self::T {
                let mut c = vec![];
                for &x in a {
                    c.push(x);
                }
                for &x in b {
                    c.push(x);
                }
                c.sort();
                c.dedup();
                c
            }
        }
        let n = xy.len();
        let tree = SEGTree::new(n);
        let mut s: SEG<SetAdd> = SEG::new(n);
        for i in 0..n {
            let mut y = xy[i].clone();
            y.sort();
            y.dedup();
            s.update(i, y);
        }
        let index: Vec<Vec<usize>> = s.buf;
        let mut segs = vec![];
        for ii in &index {
            let s: SEG<M> = SEG::new(ii.len());
            segs.push(s);
        }
        Self { tree, index, segs }
    }
    #[doc = " 計算量"]
    #[doc = " O(logH logW)"]
    pub fn update(&mut self, x: usize, y: usize, v: M::T) {
        let nodes = self.tree.update_nodes(x);
        for node in nodes {
            match node {
                SEGNode::Leaf { k } => {
                    let i = self.index[k].binary_search(&y).unwrap();
                    self.segs[k].update(i, v.clone());
                }
                SEGNode::Branch { k, l, r } => {
                    let mut v = M::id();
                    if let Ok(il) = self.index[l].binary_search(&y) {
                        let vl = self.segs[l].get(il);
                        v = M::op(&v, &vl);
                    }
                    if let Ok(ir) = self.index[r].binary_search(&y) {
                        let vr = self.segs[r].get(ir);
                        v = M::op(&v, &vr);
                    }
                    let i = self.index[k].binary_search(&y).unwrap();
                    self.segs[k].update(i, v);
                }
            }
        }
    }
    #[doc = " [x0,x1) x [y0,y1)"]
    #[doc = " 計算量"]
    #[doc = " O(logH logW)"]
    pub fn query(&self, x0: usize, x1: usize, y0: usize, y1: usize) -> M::T {
        let nodes = self.tree.query_nodes(x0, x1);
        let mut ans = M::id();
        for k in nodes {
            let l = self.index[k].lower_bound(&y0);
            let r = self.index[k].lower_bound(&y1);
            let v = self.segs[k].query(l, r);
            ans = M::op(&ans, &v);
        }
        ans
    }
}
#[derive(PartialEq, Debug)]
pub enum SEGNode {
    Leaf { k: usize },
    Branch { k: usize, l: usize, r: usize },
}
pub struct SEGTree {
    #[doc = " 葉の数（２の累乗）"]
    pub n: usize,
}
impl SEGTree {
    pub fn new(n: usize) -> SEGTree {
        let n = n.next_power_of_two();
        Self { n: n }
    }
    pub fn update_nodes(&self, i: usize) -> Vec<SEGNode> {
        use SEGNode::*;
        let mut i = i + self.n;
        let mut res = vec![Leaf { k: i }];
        while i > 1 {
            i >>= 1;
            res.push(Branch {
                k: i,
                l: i * 2,
                r: i * 2 + 1,
            });
        }
        res
    }
    #[doc = " [l,r)"]
    pub fn query_nodes(&self, l: usize, r: usize) -> Vec<usize> {
        let mut ret = vec![];
        let mut l = l + self.n;
        let mut r = r + self.n;
        while l < r {
            if l & 1 > 0 {
                ret.push(l);
                l += 1;
            }
            if r & 1 > 0 {
                r -= 1;
                ret.push(r);
            }
            l >>= 1;
            r >>= 1;
        }
        ret.sort();
        ret
    }
}
struct MAX;
impl Monoid for MAX {
    type T = i64;
    fn id() -> Self::T {
        -1
    }
    fn op(a: &Self::T, b: &Self::T) -> Self::T {
        std::cmp::max(*a, *b)
    }
}
#[doc = " フェニック木の一般化"]
#[doc = " "]
#[doc = " 各ノードには最初、idに相当する値が入っている。"]
#[doc = " get i: a[i]を返す"]
#[doc = " update i x: a[i]=x"]
#[doc = " query l r: [l,r)をカバーするノードに対してopを適用したもの"]
#[allow(dead_code)]
pub trait Monoid {
    type T: Clone + std::fmt::Debug;
    fn id() -> Self::T;
    fn op(a: &Self::T, b: &Self::T) -> Self::T;
}
#[allow(dead_code)]
pub struct SEG<M: Monoid> {
    pub n: usize,
    pub buf: Vec<M::T>,
}
impl<M: Monoid> SEG<M> {
    #[allow(dead_code)]
    pub fn new(n: usize) -> SEG<M> {
        let mut m = 1;
        while m < n {
            m *= 2;
        }
        SEG {
            n: m,
            buf: vec![M::id().clone(); 2 * m],
        }
    }
    #[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 > 1 {
            k = k >> 1;
            self.buf[k] = M::op(&self.buf[k * 2], &self.buf[k * 2 + 1]);
        }
    }
    #[allow(dead_code)]
    pub fn get(&self, k: usize) -> M::T {
        self.buf[k + self.n].clone()
    }
    pub fn do_query(&self, a: usize, b: usize, k: usize, l: usize, r: usize) -> M::T {
        if r <= a || b <= l {
            return M::id();
        }
        if a <= l && r <= b {
            return self.buf[k].clone();
        } else {
            let vl = self.do_query(a, b, k * 2, l, (l + r) / 2);
            let vr = self.do_query(a, b, k * 2 + 1, (l + r) / 2, r);
            return M::op(&vl, &vr);
        }
    }
    #[allow(dead_code)]
    pub fn query(&self, a: usize, b: usize) -> M::T {
        self.do_query(a, b, 1, 0, self.n)
    }
}
struct CoordCompression {
    comp: std::collections::HashMap<i64, usize>,
    dcmp: std::collections::HashMap<usize, i64>,
}
impl CoordCompression {
    pub fn new(xs: &[i64], start: usize) -> CoordCompression {
        let mut xs = xs.to_owned();
        xs.sort();
        let mut comp = std::collections::HashMap::new();
        let mut dcmp = std::collections::HashMap::new();
        let mut acc = start;
        for x in xs {
            if comp.contains_key(&x) {
                continue;
            }
            comp.insert(x, acc);
            dcmp.insert(acc, x);
            acc += 1;
        }
        CoordCompression {
            comp: comp,
            dcmp: dcmp,
        }
    }
    pub fn compress(&self, x: i64) -> usize {
        *self.comp.get(&x).unwrap()
    }
    pub fn decompress(&self, x: usize) -> i64 {
        *self.dcmp.get(&x).unwrap()
    }
}
#[doc = " Equivalent to std::lowerbound and std::upperbound in c++"]
pub trait LowerBound<T> {
    fn lower_bound(&self, x: &T) -> usize;
    fn upper_bound(&self, x: &T) -> usize;
}
impl<T: Ord> LowerBound<T> for [T] {
    fn lower_bound(&self, x: &T) -> usize {
        let mut low = 0;
        let mut high = self.len();
        while low != high {
            let mid = (low + high) / 2;
            match self[mid].cmp(x) {
                Ordering::Less => {
                    low = mid + 1;
                }
                Ordering::Equal | Ordering::Greater => {
                    high = mid;
                }
            }
        }
        low
    }
    fn upper_bound(&self, x: &T) -> usize {
        let mut low = 0;
        let mut high = self.len();
        while low != high {
            let mid = (low + high) / 2;
            match self[mid].cmp(x) {
                Ordering::Less | Ordering::Equal => {
                    low = mid + 1;
                }
                Ordering::Greater => {
                    high = mid;
                }
            }
        }
        low
    }
}

yukicoder

結果

テストケース

コンパイルメッセージ

ソースコード