結果
問題 | No.2871 Universal Serial Bus |
ユーザー | Moss_Local |
提出日時 | 2024-09-06 21:36:22 |
言語 | Rust (1.77.0 + proconio) |
結果 |
WA
|
実行時間 | - |
コード長 | 5,615 bytes |
コンパイル時間 | 13,961 ms |
コンパイル使用メモリ | 407,168 KB |
実行使用メモリ | 6,948 KB |
最終ジャッジ日時 | 2024-09-06 21:36:43 |
合計ジャッジ時間 | 14,958 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
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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 | WA | - |
testcase_03 | AC | 2 ms
6,940 KB |
testcase_04 | AC | 2 ms
6,940 KB |
testcase_05 | WA | - |
testcase_06 | WA | - |
testcase_07 | AC | 1 ms
6,944 KB |
testcase_08 | AC | 1 ms
6,944 KB |
testcase_09 | WA | - |
testcase_10 | AC | 2 ms
6,940 KB |
testcase_11 | WA | - |
testcase_12 | AC | 2 ms
6,940 KB |
testcase_13 | AC | 5 ms
6,944 KB |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | AC | 5 ms
6,940 KB |
testcase_17 | WA | - |
testcase_18 | WA | - |
コンパイルメッセージ
warning: variable does not need to be mutable --> src/main.rs:118:9 | 118 | 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:124:9 | 124 | let mut vec: Vec<i64> = read_vec(); | ----^^^ | | | help: remove this `mut` warning: variable does not need to be mutable --> src/main.rs:129:9 | 129 | let mut vec: Vec<usize> = read_vec(); | ----^^^ | | | help: remove this `mut` warning: variable does not need to be mutable --> src/main.rs:135:9 | 135 | let mut vec: Vec<f64> = read_vec(); | ----^^^ | | | help: remove this `mut` warning: variable does not need to be mutable --> src/main.rs:140:9 | 140 | let mut vec: Vec<char> = read_vec(); | ----^^^ | | | help: remove this `mut` warning: variable does not need to be mutable --> src/main.rs:145:9 | 145 | let mut vec: Vec<usize> = read_vec(); | ----^^^ | | | help: remove this `mut` warning: variable does not need to be mutable --> src/main.rs:150:9 | 150 | let mut vec: Vec<i64> = read_vec(); | ----^^^ | | | help: remove this `mut` warning: variable does not need to be mutable --> src/main.rs:156:9 | 156 | let mut vec: Vec<usize> = read_vec(); | ----^^^ | | | help: remove this `mut` warning: unused variable: `w` --> src/main.rs:197:9 | 197 | let w = dimensions[1]; | ^ help: if this is intentional, prefix it with an underscore: `_w` | = note: `#[warn(unused_variables)]` on by default warning: variable `ans` is assigned to, but never used --> src/main.rs:230:17 | 230 | le
ソースコード
// -*- coding:utf-8-unix -*- // #![feature(map_first_last)] #![allow(dead_code)] #![allow(unused_imports)] #![allow(unused_macros)] // use core::num; use std::cmp::*; use std::fmt::*; use std::hash::*; 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 MOD: i64 = MOD2; const UMOD: usize = MOD as usize; const M_PI: f64 = 3.14159265358979323846; // use proconio::input; // const MOD: i64 = INF; use cmp::Ordering::*; use std::collections::*; use std::io::stdin; use std::io::stdout; use std::io::Write; macro_rules! p { ($x:expr) => { //if expr println!("{}", $x); }; } macro_rules! vp { // vector print separate with space ($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 $val { println!("Yes"); } else { println!("No"); } }; } macro_rules! map{ // declear btreemap ($($key:expr => $val:expr),*) => { { let mut map = ::std::collections::BTreeMap::new(); $( map.insert($key, $val); )* map } }; } macro_rules! set{ // declear btreemap ($($key:expr),*) => { { let mut set = ::std::collections::BTreeSet::new(); $( set.insert($key); )* set } }; } //input output #[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: u32) -> 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]) } use std::io::BufRead; fn rotate_180(s: &Vec<Vec<char>>) -> Vec<Vec<char>> { let h = s.len(); let w = s[0].len(); let mut rotated = vec![vec!['.'; w]; h]; for i in 0..h { for j in 0..w { rotated[h - i - 1][w - j - 1] = s[i][j]; } } rotated } fn compare(s: &Vec<Vec<char>>, t: &Vec<Vec<char>>) -> bool { let h = s.len(); let w = s[0].len(); for i in 0..h { for j in 0..w { if s[i][j] == t[i][j] { return false; } } } true } fn main() { let stdin = io::stdin(); let mut lines = stdin.lock().lines(); let first_line = lines.next().unwrap().unwrap(); let dimensions: Vec<usize> = first_line .split_whitespace() .map(|x| x.parse().unwrap()) .collect(); let h = dimensions[0]; let w = dimensions[1]; let mut s = Vec::new(); let mut t = Vec::new(); for _ in 0..h { let line = lines .next() .unwrap() .unwrap() .chars() .collect::<Vec<char>>(); s.push(line); } for _ in 0..h { let line = lines .next() .unwrap() .unwrap() .chars() .collect::<Vec<char>>(); t.push(line); } d!(s); d!(t); // 回転したSを作成 let rotated_s = rotate_180(&s); let success1 = compare(&s, &t); let succsess2 = compare(&rotated_s, &t); if success1 { //0 + (1-1/(2^2) +(1- 1/(2^4))) let mut ans = 0.0; let mut prob = 1.0; for i in 0..1000 { let mut success = 1.0 - 1.0 / (2.0 as f64).powi(i); if i % 2 == 0 { ans += (i as f64 + 1.0) * prob * success; prob *= 1.0 - success; } } // p!(ans); } else if succsess2 { //0 + (1-1/(2^2) +(1- 1/(2^4))) let mut ans = 0.0; let mut prob = 1.0; for i in 0..1000 { let mut success = 1.0 - 1.0 / (2.0 as f64).powi(i); if i % 2 == 1 { ans += (i as f64 + 1.0) * prob * success; prob *= 1.0 - success; } } p!(ans); } else { p!(-1); } }