結果
| 問題 | No.1877 俺自身が線グラフになることだ |
| ユーザー |
 Moss_Local
|
| 提出日時 | 2022-03-18 21:39:26 |
| 言語 | Rust (1.83.0 + proconio) |
| 結果 |
AC
|
| 実行時間 | 3 ms / 2,000 ms |
| コード長 | 7,117 bytes |
| コンパイル時間 | 12,130 ms |
| コンパイル使用メモリ | 404,860 KB |
| 実行使用メモリ | 6,820 KB |
| 最終ジャッジ日時 | 2024-10-03 06:25:22 |
| 合計ジャッジ時間 | 11,489 ms |
|
ジャッジサーバーID （参考情報） |
judge5 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 12 |
コンパイルメッセージ
warning: unnecessary parentheses around type
--> src/main.rs:75:15
|
75 | fn readi() -> (i64) {
| ^ ^
|
= note: `#[warn(unused_parens)]` on by default
help: remove these parentheses
|
75 - fn readi() -> (i64) {
75 + fn readi() -> i64 {
|
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::any::Any;use std::cmp::Ordering::*;use std::collections::*;use std::convert::*;use std::convert::{From, Into};use std::error::Error;use std::f64::consts::PI;use std::fmt::Debug;use std::fmt::Display;use std::fs::File;use std::hash::Hash;use std::io::prelude::*;use std::io::*;use std::iter::Filter;use std::marker::Copy;use std::mem::*;use std::ops::Bound::*;use std::ops::RangeBounds;use std::ops::{Add, Mul, Neg, Sub};use std::process;use std::slice::from_raw_parts;use std::str;use std::vec;const INF: i64 = 1223372036854775807;const UINF: usize = INF as usize;// const FINF: f64 = 122337203685.0;const LINF: i64 = 2147483647;const FINF: f64 = LINF as f64;const INF128: i128 = 1223372036854775807000000000000;const MOD: i64 = 1000000007;// const MOD: i64 = 998244353;const MPI: f64 = 3.14159265358979323846264338327950288f64;// 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);};}// use str::Chars;fn main() {solve();}// 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_mat<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(),)}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 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(),)}#[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(),)}pub struct Dsu {n: usize,// root node: -1 * component size// otherwise: parentparent_or_size: Vec<i32>,}impl Dsu {// 0 <= size <= 10^8 is constrained.pub fn new(size: usize) -> Self {Self {n: size,parent_or_size: vec![-1; size],}}pub fn merge(&mut self, a: usize, b: usize) -> usize {assert!(a < self.n);assert!(b < self.n);let (mut x, mut y) = (self.leader(a), self.leader(b));if x == y {return x;}if -self.parent_or_size[x] < -self.parent_or_size[y] {std::mem::swap(&mut x, &mut y);}self.parent_or_size[x] += self.parent_or_size[y];self.parent_or_size[y] = x as i32;x}pub fn same(&mut self, a: usize, b: usize) -> bool {assert!(a < self.n);assert!(b < self.n);self.leader(a) == self.leader(b)}pub fn leader(&mut self, a: usize) -> usize {assert!(a < self.n);if self.parent_or_size[a] < 0 {return a;}self.parent_or_size[a] = self.leader(self.parent_or_size[a] as usize) as i32;self.parent_or_size[a] as usize}pub fn size(&mut self, a: usize) -> usize {assert!(a < self.n);let x = self.leader(a);-self.parent_or_size[x] as usize}pub fn groups(&mut self) -> Vec<Vec<usize>> {let mut leader_buf = vec![0; self.n];let mut group_size = vec![0; self.n];for i in 0..self.n {leader_buf[i] = self.leader(i);group_size[leader_buf[i]] += 1;}let mut result = vec![Vec::new(); self.n];for i in 0..self.n {result[i].reserve(group_size[i]);}for i in 0..self.n {result[leader_buf[i]].push(i);}result.into_iter().filter(|x| !x.is_empty()).collect::<Vec<Vec<usize>>>()}}fn solve() {let n: usize = read();if n == 1 {p!(0);return;}let mut dp = vec![0; n + 2000];dp[0] = 1;for i in 2..=n {for j in 0..=n {dp[i + j + 1] += dp[j];dp[i + j + 1] %= UMOD;}// d!(dp);}p!(dp[n]);return;}