結果
| 問題 | No.326 あみだますたー |
| ユーザー |
 MasuqaT
|
| 提出日時 | 2019-08-25 21:30:15 |
| 言語 | Rust (1.77.0 + proconio) |
| 結果 |
WA
(最新)
J_TLE
(最初)
|
| 実行時間 | - |
| コード長 | 7,124 bytes |
| コンパイル時間 | 16,790 ms |
| コンパイル使用メモリ | 378,504 KB |
| 実行使用メモリ | 5,376 KB |
| 最終ジャッジ日時 | 2024-05-04 00:12:39 |
| 合計ジャッジ時間 | 22,119 ms |
|
ジャッジサーバーID （参考情報） |
judge2 / judge4 |
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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 | AC | 1 ms
5,248 KB |
| testcase_01 | WA | - |
| testcase_02 | WA | - |
| testcase_03 | WA | - |
| testcase_04 | WA | - |
| testcase_05 | AC | 1 ms
5,376 KB |
| testcase_06 | AC | 1 ms
5,376 KB |
| testcase_07 | AC | 1 ms
5,376 KB |
| testcase_08 | AC | 8 ms
5,376 KB |
| testcase_09 | AC | 7 ms
5,376 KB |
| testcase_10 | AC | 8 ms
5,376 KB |
| testcase_11 | WA | - |
| testcase_12 | WA | - |
| testcase_13 | WA | - |
| testcase_14 | WA | - |
| testcase_15 | WA | - |
| testcase_16 | WA | - |
| testcase_17 | WA | - |
| testcase_18 | WA | - |
| testcase_19 | WA | - |
| testcase_20 | WA | - |
| testcase_21 | WA | - |
| testcase_22 | WA | - |
| testcase_23 | WA | - |
| testcase_24 | WA | - |
| testcase_25 | WA | - |
| testcase_26 | WA | - |
| testcase_27 | WA | - |
コンパイルメッセージ
warning: unused `Result` that must be used
--> src/main.rs:215:5
|
215 | writeln!(writer, "{}", swaps.len());
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: this `Result` may be an `Err` variant, which should be handled
= note: `#[warn(unused_must_use)]` on by default
= note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
warning: unused `Result` that must be used
--> src/main.rs:217:9
|
217 | writeln!(writer, "{} {}", swap.0 + 1, swap.1 + 1);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: this `Result` may be an `Err` variant, which should be handled
= note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
ソースコード
// Macro by MasuqaT (occar421)
// https://github.com/occar421/ProgrammingContest/tree/master/templates/src/standard_io.rs
use std::io;
use std::io::{BufRead, Write};
use std::ops::{Rem, Div, Mul};
use std::fmt::Display;
use std::iter::FromIterator;
// From https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8
macro_rules! input {
(source = $s:expr, $($r:tt)*) => {
let mut iter = $s.split_whitespace();
input_inner!{iter, $($r)*}
};
(stdin = $s:expr, $($r:tt)*) => {
let s = {
let mut s = String::new();
$s.read_to_string(&mut s).unwrap();
s
};
let mut iter = s.split_whitespace();
input_inner!{iter, $($r)*}
};
}
macro_rules! input_inner {
($iter:expr) => {};
($iter:expr, ) => {};
($iter:expr, $var:ident : $t:tt $($r:tt)*) => {
let $var = read_value!($iter, $t);
input_inner!{$iter $($r)*}
};
}
macro_rules! read_value {
($iter:expr, ( $($t:tt),* )) => {
( $(read_value!($iter, $t)),* )
};
($iter:expr, [ $t:tt ; $len:expr ]) => {
(0..$len).map(|_| read_value!($iter, $t)).collect::<Vec<_>>()
};
($iter:expr, chars) => {
read_value!($iter, String).chars().collect::<Vec<char>>()
};
($iter:expr, usize1) => {
read_value!($iter, usize) - 1
};
($iter:expr, $t:ty) => {
$iter.next().unwrap().parse::<$t>().expect("Parse error")
};
}
#[allow(unused_macros)]
macro_rules! assert_judge {
($method:ident, $input:expr, $expected:expr) => {
{
let input = $input.as_bytes();
let mut output = Vec::new();
$method(&input[..], &mut output);
let output = String::from_utf8(output).expect("Not UTF-8");
assert_eq!(output, $expected);
}
};
}
#[allow(unused_macros)]
macro_rules! assert_judge_with_output {
($method:ident, $input:expr) => {
{
let input = $input.as_bytes();
let mut output = Vec::new();
$method(&input[..], &mut output);
String::from_utf8(output).expect("Not UTF-8")
}
};
}
#[allow(unused_macros)]
macro_rules! assert_eq_with_error {
($left:expr, $right:expr, $precision:expr) => ({
match (&$left, &$right, &$precision) {
(left_val, right_val, precision_val) => {
if !(*left_val - *precision_val < *right_val && *right_val < *left_val + *precision_val) {
// The reborrows below are intentional. Without them, the stack slot for the
// borrow is initialized even before the values are compared, leading to a
// noticeable slow down.
panic!(r#"assertion failed: `(left == right) +- precision`
left: `{:?}`,
right: `{:?}`,
precision: `{:?}`"#, &*left_val, &*right_val, &*precision_val)
}
}
}
});
}
#[allow(unused_macros)]
macro_rules! assert_judge_with_error {
($method:ident, $input:expr, $expected:expr, $t:ty | $precision:expr ) => {
{
let input = $input.as_bytes();
let mut output = Vec::new();
$method(&input[..], &mut output);
let output = String::from_utf8(output).expect("Not UTF-8");
let actual: $t = output.parse().unwrap();
let expected: $t = $expected.parse().unwrap();
assert_eq_with_error!(actual, expected, $precision);
}
};
}
pub trait GenericInteger: Copy + PartialEq + Rem<Output=Self> + Div<Output=Self> + Mul<Output=Self> {
fn zero() -> Self;
}
macro_rules! dec_gi {
() => {};
($t:ty $(, $r:ty)*) => {
impl GenericInteger for $t {
#[inline]
fn zero() -> Self { 0 }
}
dec_gi![ $( $r ),* ];
};
}
dec_gi![u8, u16, u32, u64, u128, usize, i8, i16, i32, i64, i128, isize];
#[allow(dead_code)]
pub fn gcd<T>(a: T, b: T) -> T where T: GenericInteger {
if b == T::zero() {
a
} else {
gcd(b, a % b)
}
}
#[allow(dead_code)]
#[inline]
pub fn lcm<T>(a: T, b: T) -> T where T: GenericInteger {
a / gcd(a, b) * b
}
pub trait IterExt<T> where T: Display {
fn easy_join(&mut self, separator: &str) -> String;
}
impl<TItem, TTrait> IterExt<TItem> for TTrait where TItem: Display, TTrait: Iterator<Item=TItem> {
#[inline]
fn easy_join(&mut self, separator: &str) -> String {
self.map(|i| format!("{}", i)).collect::<Vec<_>>().join(separator)
}
}
#[allow(unused_macros)]
macro_rules! swap {
($v1:expr, $v2:expr) => {
let buf = $v1;
$v1 = $v2;
$v2 = buf;
};
}
fn main() {
let stdio = io::stdin();
let input = stdio.lock();
let output = io::stdout();
process(input, output);
}
fn process<R, W>(mut reader: R, mut writer: W) -> () where
R: BufRead,
W: Write {
input! {
stdin = reader,
n: usize,
k: usize,
xy_in: [(usize1, usize1); k],
a: [usize1; n]
}
// naive
let mut swaps: Vec<(usize, usize)> = vec![];
let mut current = Vec::from_iter(0usize..n);
for xy in xy_in.iter() {
swap!(current[xy.0], current[xy.1]);
}
for (i, a) in a.iter().enumerate() {
let pos = current.iter().skip(i).position(|c| c == a).unwrap() + i;
for j in (i..pos).rev() {
swaps.push((j, j + 1));
swap!(current[j], current[j + 1]);
}
}
writeln!(writer, "{}", swaps.len());
for swap in swaps {
writeln!(writer, "{} {}", swap.0 + 1, swap.1 + 1);
}
}
#[cfg(test)]
mod tests {
use super::*;
use std::iter::FromIterator;
#[test]
fn sample1() {
let input = "\
5
6
1 2
3 4
2 3
3 4
1 2
4 5
5 1 4 3 2
";
let output = assert_judge_with_output!(process, input);
input! {
source = input,
n: usize,
k: usize,
xy_in: [(usize1, usize1); k],
a: [usize1; n]
}
input! {
source = output,
l: usize,
xy_out: [(usize1, usize1); l],
}
let mut result = Vec::from_iter(0usize..n);
for xy in xy_in {
swap!(result[xy.0], result[xy.1]);
}
for xy in xy_out {
swap!(result[xy.0], result[xy.1]);
}
assert_eq!(result, a);
}
#[test]
fn sample2() {
let input = "\
6
4
1 2
2 3
5 6
3 4
2 6 3 1 5 4
";
let output = assert_judge_with_output!(process, input);
input! {
source = input,
n: usize,
k: usize,
xy_in: [(usize1, usize1); k],
a: [usize1; n]
}
input! {
source = output,
l: usize,
xy_out: [(usize1, usize1); l],
}
let mut result = Vec::from_iter(0usize..n);
for xy in xy_in {
swap!(result[xy.0], result[xy.1]);
}
for xy in xy_out {
swap!(result[xy.0], result[xy.1]);
}
assert_eq!(result, a);
}
}