結果
| 問題 |
No.1231 Make a Multiple of Ten
|
| コンテスト | |
| ユーザー |
tzyvrn
|
| 提出日時 | 2020-09-19 16:40:17 |
| 言語 | Rust (1.83.0 + proconio) |
| 結果 |
AC
|
| 実行時間 | 15 ms / 2,000 ms |
| コード長 | 1,459 bytes |
| コンパイル時間 | 12,109 ms |
| コンパイル使用メモリ | 394,976 KB |
| 実行使用メモリ | 6,944 KB |
| 最終ジャッジ日時 | 2024-06-23 17:25:34 |
| 合計ジャッジ時間 | 13,389 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 13 |
コンパイルメッセージ
warning: unused import: `std::cmp::min` --> src/main.rs:1:5 | 1 | use std::cmp::min; | ^^^^^^^^^^^^^ | = note: `#[warn(unused_imports)]` on by default warning: use of deprecated method `core::str::<impl str>::trim_right`: superseded by `trim_end` --> src/main.rs:10:23 | 10 | let s = s.trim_right(); | ^^^^^^^^^^ ... 31 | let n = getl!(usize); | ------------ in this macro invocation | = note: `#[warn(deprecated)]` on by default = note: this warning originates in the macro `getl` (in Nightly builds, run with -Z macro-backtrace for more info) help: replace the use of the deprecated method | 10 | let s = s.trim_end(); | ~~~~~~~~ warning: use of deprecated method `core::str::<impl str>::trim_right`: superseded by `trim_end` --> src/main.rs:22:19 | 22 | let s = s.trim_right(); | ^^^^^^^^^^ ... 32 | let a = getl_vec!(usize); | ---------------- in this macro invocation | = note: this warning originates in the macro `getl_vec` (in Nightly builds, run with -Z macro-backtrace for more info) help: replace the use of the deprecated method | 22 | let s = s.trim_end(); | ~~~~~~~~
ソースコード
use std::cmp::min;
//{{{
#[allow(unused_macros)]
macro_rules! getl {
( $( $t:ty ),* ) => {
{
let mut s = String::new();
std::io::stdin().read_line(&mut s).unwrap();
let s = s.trim_right();
let mut ws = s.split_whitespace();
($(ws.next().unwrap().parse::<$t>().unwrap()),*)
}
};
}
#[allow(unused_macros)]
macro_rules! getl_vec {
( $t:ty ) => {{
let mut s = String::new();
std::io::stdin().read_line(&mut s).unwrap();
let s = s.trim_right();
s.split_whitespace()
.map(|x| x.parse().unwrap())
.collect::<Vec<$t>>()
}};
}
//}}}
fn main() {
let n = getl!(usize);
let a = getl_vec!(usize);
let mut cnt = vec![0usize; 10];
for ai in a.iter().copied() {
cnt[ai % 10] += 1;
}
let mut s = 0;
for ai in a.iter().copied() {
s += ai;
s = s % 10;
}
let r = dfs(1, 0, 0, s, &cnt);
println!("{}", n - r);
}
fn dfs(m: usize, c: usize, now: usize, t: usize, cnt: &Vec<usize>) -> usize {
if m > 9 {
return 100;
}
let mut ret = 100;
for i in 0..=9 {
if i > cnt[m] || c + i > 10 {
break;
}
let now = (now + m * i) % 10;
if now == t {
ret = std::cmp::min(ret, c + i);
} else {
ret = std::cmp::min(ret, dfs(m + 1, c + i, now, t, cnt));
}
}
ret
}
tzyvrn