結果
| 問題 | No.3030 Kruskal-Katona |
| ユーザー |
 Moss_Local
|
| 提出日時 | 2025-02-21 22:10:17 |
| 言語 | Rust (1.83.0 + proconio) |
| 結果 |
AC
|
| 実行時間 | 1 ms / 2,000 ms |
| コード長 | 4,351 bytes |
| コンパイル時間 | 13,108 ms |
| コンパイル使用メモリ | 400,652 KB |
| 実行使用メモリ | 6,820 KB |
| 最終ジャッジ日時 | 2025-02-21 22:10:33 |
| 合計ジャッジ時間 | 14,622 ms |
|
ジャッジサーバーID （参考情報） |
judge1 / judge2 |
（要ログイン）
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 27 |
コンパイルメッセージ
warning: variable does not need to be mutable
--> src/main.rs:111:9
|
111 | let mut vec: Vec<i64> = read_vec();
| ----^^^
| |
| help: remove this `mut`
|
= note: `#[warn(unused_mut)]` on by default
warning: variable does not need to be mutable
--> src/main.rs:117:9
|
117 | let mut vec: Vec<i64> = read_vec();
| ----^^^
| |
| help: remove this `mut`
warning: variable does not need to be mutable
--> src/main.rs:122:9
|
122 | let mut vec: Vec<usize> = read_vec();
| ----^^^
| |
| help: remove this `mut`
warning: variable does not need to be mutable
--> src/main.rs:128:9
|
128 | let mut vec: Vec<f64> = read_vec();
| ----^^^
| |
| help: remove this `mut`
warning: variable does not need to be mutable
--> src/main.rs:133:9
|
133 | let mut vec: Vec<char> = read_vec();
| ----^^^
| |
| help: remove this `mut`
warning: variable does not need to be mutable
--> src/main.rs:138:9
|
138 | let mut vec: Vec<usize> = read_vec();
| ----^^^
| |
| help: remove this `mut`
warning: variable does not need to be mutable
--> src/main.rs:143:9
|
143 | let mut vec: Vec<i64> = read_vec();
| ----^^^
| |
| help: remove this `mut`
warning: variable does not need to be mutable
--> src/main.rs:149:9
|
149 | let mut vec: Vec<usize> = read_vec();
| ----^^^
| |
| help: remove this `mut`
ソースコード
#![allow(dead_code)]#![allow(unused_imports)]#![allow(unused_macros)]use std::cmp::*;use std::fmt::*;use std::hash::*;use std::io::BufRead;use std::iter::FromIterator;use std::*;use std::{cmp, collections, fmt, io, iter, ops, str};const INF: i64 = 1223372036854775807;const UINF: usize = INF as usize;const LINF: i64 = 2147483647;const INF128: i128 = 1223372036854775807000000000000;const MOD1: i64 = 1000000007;const MOD9: i64 = 998244353;const MOD: i64 = MOD9;const UMOD: usize = MOD as usize;const M_PI: f64 = 3.14159265358979323846;use cmp::Ordering::*;use std::collections::*;use std::io::stdin;use std::io::stdout;use std::io::Write;macro_rules! p {($x:expr) => {println!("{}", $x);};}macro_rules! vp {($x:expr) => {println!("{}",$x.iter().map(|x| x.to_string()).collect::<Vec<_>>().join(" "));};}macro_rules! d {($x:expr) => {eprintln!("{:?}", $x);};}macro_rules! yn {($val:expr) => {if $val {println!("Yes");} else {println!("No");}};}macro_rules! map{($($key:expr => $val:expr),*) => {{let mut map = ::std::collections::BTreeMap::new();$(map.insert($key, $val);)*map}};}macro_rules! set{($($key:expr),*) => {{let mut set = ::std::collections::BTreeSet::new();$(set.insert($key);)*set}};}#[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 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: usize) -> Vec<Vec<T>> {(0..n).map(|_| read_vec()).collect()}#[allow(dead_code)]fn readii() -> (i64, i64) {let mut vec: Vec<i64> = read_vec();(vec[0], vec[1])}#[allow(dead_code)]fn readiii() -> (i64, i64, i64) {let mut vec: Vec<i64> = read_vec();(vec[0], vec[1], vec[2])}#[allow(dead_code)]fn readuu() -> (usize, usize) {let mut vec: Vec<usize> = read_vec();(vec[0], vec[1])}#[allow(dead_code)]fn readff() -> (f64, f64) {let mut vec: Vec<f64> = read_vec();(vec[0], vec[1])}fn readcc() -> (char, char) {let mut vec: Vec<char> = read_vec();(vec[0], vec[1])}fn readuuu() -> (usize, usize, usize) {let mut vec: Vec<usize> = read_vec();(vec[0], vec[1], vec[2])}#[allow(dead_code)]fn readiiii() -> (i64, i64, i64, i64) {let mut vec: Vec<i64> = read_vec();(vec[0], vec[1], vec[2], vec[3])}#[allow(dead_code)]fn readuuuu() -> (usize, usize, usize, usize) {let mut vec: Vec<usize> = read_vec();(vec[0], vec[1], vec[2], vec[3])}fn binom(n: usize, k: usize) -> usize {if k > n {return 0;}if k == 0 || k == n {return 1;}let mut res = 1usize;let k = k.min(n - k);for i in 1..=k {res = res * (n - i + 1) / i;if res > LINF as usize {return UINF;}}res}fn main() {let (mut r, mut k) = readuu();let mut ans = Vec::new();let mut prev = UINF;while r > 0 && k >= 1 {if k == 1 {let n_val = if r < prev { r } else { prev - 1 };ans.push(n_val);r -= n_val;} else {let (mut lo, mut hi) = (k, prev - 1);let mut cand = lo;while lo <= hi {let mid = (lo + hi) / 2;let b = binom(mid, k);if b <= r {cand = mid;lo = mid + 1;} else {if mid == 0 {break;}hi = mid - 1;}}ans.push(cand);r -= binom(cand, k);}if k == 0 {break;}prev = *ans.last().unwrap();k -= 1;}vp!(ans);}