結果
| 問題 | No.3685 ワロングアンサーやんけ! |
| コンテスト | |
| ユーザー |
norioc
|
| 提出日時 | 2026-09-05 17:13:34 |
| 言語 | Rust (1.97.1 + proconio + num + itertools) |
| 結果 |
AC
|
| 実行時間 | 158 ms / 2,000 ms |
| + 804µs | |
| コード長 | 2,326 bytes |
| 記録 | |
| コンパイル時間 | 9,332 ms |
| コンパイル使用メモリ | 205,952 KB |
| 実行使用メモリ | 9,788 KB |
| 最終ジャッジ日時 | 2026-09-05 17:13:47 |
| 合計ジャッジ時間 | 12,439 ms |
|
ジャッジサーバーID (参考情報) |
judge5_0 / judge1_0 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 1 |
| other | AC * 32 |
コンパイルメッセージ
warning: unused variable: `suffix_all_a`
--> src/main.rs:61:13
|
61 | let suffix_all_a = suffix_count('A') == R.len() - K;
| ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_suffix_all_a`
|
= note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
warning: unused variable: `prefix_has_w`
--> src/main.rs:63:13
|
63 | let prefix_has_w = prefix_count('W') > 0;
| ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prefix_has_w`
ソースコード
#![allow(non_snake_case, unused_imports)]
use std::cmp::Reverse;
use std::collections::{BinaryHeap, HashMap, HashSet};
use proconio::{input, marker::Usize1, marker::Chars};
use itertools::Itertools;
#[allow(unused_macros)]
macro_rules! d {
( $( $x:expr ),* $(,)? ) => {
eprintln!(
concat!( $( stringify!($x), "={:?} " ),* ),
$( $x ),*
);
};
}
#[allow(dead_code)]
fn yn(b: bool) -> &'static str {
if b { "Yes" } else { "No" }
}
fn replace_first(s: &str, fm: char, to: &str) -> String {
let mut res = String::new();
let mut b = false;
for c in s.chars() {
if !b && c == fm {
res.push_str(to);
b = true;
} else {
res.push(c)
}
}
res
}
fn solve() -> String {
input! {
R: String,
S: String,
K: usize,
}
let prefix_count = |c: char| -> usize {
R.chars()
.take(K)
.filter(|&x| x == c)
.count()
};
let suffix_count = |c: char| -> usize {
R.chars()
.skip(K)
.filter(|&x| x == c)
.count()
};
if S == "NotWarong" {
let prefix_all_a = prefix_count('A') == K;
let suffix_all_a = suffix_count('A') == R.len() - K;
let prefix_has_w = prefix_count('W') > 0;
let suffix_has_w = suffix_count('W') > 0;
if prefix_all_a {
return R.replace('?', "A");
}
if suffix_has_w {
let a = prefix_count('A');
let q = prefix_count('?');
if a == K-1 && q == 1 {
return replace_first(&R, '?', "W");
}
return R;
}
return R;
}
let freq = R.chars().skip(K as usize).counts();
let qcnt = *freq.get(&'?').unwrap_or(&0);
let wcnt = *freq.get(&'W').unwrap_or(&0);
let mut s = String::new();
for _ in 0..K {
s.push('A');
}
let cs: Vec<char> = R.chars().collect();
for i in K as usize..R.len() {
if cs[i] == '?' && qcnt == 1 && wcnt == 0 {
s.push('W');
} else {
s.push(cs[i]);
}
}
s
}
fn main() {
input! {
T: usize,
}
for _ in 0..T {
let ans = solve();
println!("{}", ans);
}
}
norioc