Submission #7882271
Source Code Expand
// https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8
macro_rules! input {
(source = $s:expr, $($r:tt)*) => {
let mut iter = $s.split_whitespace();
input_inner!{iter, $($r)*}
};
($($r:tt)*) => {
let mut s = {
use std::io::Read;
let mut s = String::new();
std::io::stdin().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")
};
}
// implement
fn main() {
input! {
a: i32,
b: i32
}
println!("{}", a - b);
}
Submission Info
Submission Time
2019-10-06 13:45:24+0900
Task
A - 積雪深差
User
lsp
Language
Rust (1.15.1)
Score
100
Code Size
1398 Byte
Status
AC
Exec Time
2 ms
Memory
4352 KB
Compile Error
warning: variable does not need to be mutable, #[warn(unused_mut)] on by default
--> ./Main.rs:8:13
|
8 | let mut s = {
| ^^^^^
...
53 | input! {
| _____- starting here...
54 | | a: i32,
55 | | b: i32
56 | | }
| |_____- ...ending here: in this macro invocation
Judge Result
Set Name
all
Score / Max Score
100 / 100
Status
Set Name
Test Cases
all
00_sample_01.txt, 00_sample_02.txt, 00_sample_03.txt, test_01.txt, test_02.txt, test_03.txt, test_04.txt, test_05.txt, test_06.txt, test_07.txt, test_08.txt, test_09.txt, test_10.txt, test_11.txt, test_12.txt, test_13.txt, test_14.txt, test_15.txt, test_16.txt, test_17.txt
Case Name
Status
Exec Time
Memory
00_sample_01.txt
AC
2 ms
4352 KB
00_sample_02.txt
AC
2 ms
4352 KB
00_sample_03.txt
AC
2 ms
4352 KB
test_01.txt
AC
2 ms
4352 KB
test_02.txt
AC
2 ms
4352 KB
test_03.txt
AC
2 ms
4352 KB
test_04.txt
AC
2 ms
4352 KB
test_05.txt
AC
2 ms
4352 KB
test_06.txt
AC
2 ms
4352 KB
test_07.txt
AC
2 ms
4352 KB
test_08.txt
AC
2 ms
4352 KB
test_09.txt
AC
2 ms
4352 KB
test_10.txt
AC
2 ms
4352 KB
test_11.txt
AC
2 ms
4352 KB
test_12.txt
AC
2 ms
4352 KB
test_13.txt
AC
2 ms
4352 KB
test_14.txt
AC
2 ms
4352 KB
test_15.txt
AC
2 ms
4352 KB
test_16.txt
AC
2 ms
4352 KB
test_17.txt
AC
2 ms
4352 KB