結果
| 問題 | No.1336 Union on Blackboard |
| ユーザー |
 fukafukatani
|
| 提出日時 | 2021-01-15 22:02:18 |
| 言語 | Rust (1.77.0 + proconio) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 5,751 bytes |
| コンパイル時間 | 11,153 ms |
| コンパイル使用メモリ | 389,516 KB |
| 実行使用メモリ | 6,948 KB |
| 最終ジャッジ日時 | 2024-05-04 23:49:22 |
| 合計ジャッジ時間 | 12,244 ms |
|
ジャッジサーバーID （参考情報） |
judge4 / 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 | AC | 1 ms
5,248 KB |
| testcase_01 | WA | - |
| testcase_02 | WA | - |
| testcase_03 | WA | - |
| testcase_04 | WA | - |
| testcase_05 | WA | - |
| testcase_06 | WA | - |
| testcase_07 | WA | - |
| testcase_08 | WA | - |
| testcase_09 | WA | - |
| testcase_10 | WA | - |
| 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 | - |
| testcase_28 | WA | - |
| testcase_29 | WA | - |
| testcase_30 | WA | - |
| testcase_31 | WA | - |
コンパイルメッセージ
warning: unused variable: `i`
--> src/main.rs:20:9
|
20 | for i in 0..t {
| ^ help: if this is intentional, prefix it with an underscore: `_i`
|
= note: `#[warn(unused_variables)]` on by default
warning: associated items `set_modulus`, `pow`, and `inv` are never used
--> src/main.rs:47:8
|
46 | impl Modulo {
| ----------- associated items in this implementation
47 | fn set_modulus(m: i64) {
| ^^^^^^^^^^^
...
65 | fn pow(self, p: i64) -> Modulo {
| ^^^
...
77 | fn inv(self) -> Modulo {
| ^^^
|
= note: `#[warn(dead_code)]` on by default
ソースコード
#![allow(unused_imports)]
use std::cmp::*;
use std::collections::*;
use std::io::Write;
use std::ops::Bound::*;
#[allow(unused_macros)]
macro_rules! debug {
($($e:expr),*) => {
#[cfg(debug_assertions)]
$({
let (e, mut err) = (stringify!($e), std::io::stderr());
writeln!(err, "{} = {:?}", e, $e).unwrap()
})*
};
}
fn main() {
let t = read::<usize>();
for i in 0..t {
let a = read_vec::<i64>();
let mut cur = Modulo(a[0]);
for i in 1..a.len() {
cur = cur * a[i] + cur + a[i];
}
println!("{}", cur);
}
}
fn read<T: std::str::FromStr>() -> T {
let mut s = String::new();
std::io::stdin().read_line(&mut s).ok();
s.trim().parse().ok().unwrap()
}
fn read_vec<T: std::str::FromStr>() -> Vec<T> {
read::<String>()
.split_whitespace()
.map(|e| e.parse().ok().unwrap())
.collect()
}
#[derive(Clone, Copy, Debug, Default, Eq, Hash, Ord, PartialEq, PartialOrd)]
struct Modulo(i64);
static mut MODULUS: i64 = 1000_000_000 + 7;
impl Modulo {
fn set_modulus(m: i64) {
unsafe {
MODULUS = m;
}
}
fn get_modulus() -> i64 {
unsafe { MODULUS }
}
fn new(x: i64) -> Modulo {
let m = Modulo::get_modulus();
if x < 0 {
Modulo(x % m + m)
} else if x < m {
Modulo(x)
} else {
Modulo(x % m)
}
}
fn pow(self, p: i64) -> Modulo {
if p == 0 {
Modulo(1)
} else {
let mut t = self.pow(p / 2);
t *= t;
if p & 1 == 1 {
t *= self;
}
t
}
}
fn inv(self) -> Modulo {
self.pow(Modulo::get_modulus() - 2)
}
}
impl std::fmt::Display for Modulo {
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
self.0.fmt(f)
}
}
impl std::ops::AddAssign for Modulo {
fn add_assign(&mut self, other: Modulo) {
let m = Modulo::get_modulus();
self.0 += other.0;
if self.0 >= m {
self.0 -= m;
}
}
}
impl std::ops::MulAssign for Modulo {
fn mul_assign(&mut self, other: Modulo) {
let m = Modulo::get_modulus();
self.0 *= other.0;
self.0 %= m;
}
}
impl std::ops::SubAssign for Modulo {
fn sub_assign(&mut self, other: Modulo) {
let m = Modulo::get_modulus();
self.0 += m - other.0;
if self.0 >= m {
self.0 -= m;
}
}
}
macro_rules! impl_modulo_ops {
($imp:ident, $method:ident, $assign_imp:ident, $assign_method:ident) => {
impl<'a> std::ops::$assign_imp<&'a Modulo> for Modulo {
fn $assign_method(&mut self, other: &'a Modulo) {
std::ops::$assign_imp::$assign_method(self, *other);
}
}
impl std::ops::$imp for Modulo {
type Output = Modulo;
fn $method(self, other: Modulo) -> Modulo {
let mut x = self;
std::ops::$assign_imp::$assign_method(&mut x, other);
x
}
}
impl<'a> std::ops::$imp<Modulo> for &'a Modulo {
type Output = Modulo;
fn $method(self, other: Modulo) -> Modulo {
std::ops::$imp::$method(*self, other)
}
}
impl<'a> std::ops::$imp<&'a Modulo> for Modulo {
type Output = Modulo;
fn $method(self, other: &'a Modulo) -> Modulo {
std::ops::$imp::$method(self, *other)
}
}
impl<'a, 'b> std::ops::$imp<&'b Modulo> for &'a Modulo {
type Output = Modulo;
fn $method(self, other: &'b Modulo) -> Modulo {
std::ops::$imp::$method(*self, *other)
}
}
impl std::ops::$assign_imp<i64> for Modulo {
fn $assign_method(&mut self, other: i64) {
std::ops::$assign_imp::$assign_method(self, Modulo::new(other));
}
}
impl<'a> std::ops::$assign_imp<&'a i64> for Modulo {
fn $assign_method(&mut self, other: &'a i64) {
std::ops::$assign_imp::$assign_method(self, *other);
}
}
impl std::ops::$imp<i64> for Modulo {
type Output = Modulo;
fn $method(self, other: i64) -> Modulo {
let mut x = self;
std::ops::$assign_imp::$assign_method(&mut x, other);
x
}
}
impl<'a> std::ops::$imp<&'a i64> for Modulo {
type Output = Modulo;
fn $method(self, other: &'a i64) -> Modulo {
std::ops::$imp::$method(self, *other)
}
}
impl<'a> std::ops::$imp<i64> for &'a Modulo {
type Output = Modulo;
fn $method(self, other: i64) -> Modulo {
std::ops::$imp::$method(*self, other)
}
}
impl<'a, 'b> std::ops::$imp<&'b i64> for &'a Modulo {
type Output = Modulo;
fn $method(self, other: &'b i64) -> Modulo {
std::ops::$imp::$method(*self, *other)
}
}
};
}
impl_modulo_ops!(Add, add, AddAssign, add_assign);
impl_modulo_ops!(Mul, mul, MulAssign, mul_assign);
impl_modulo_ops!(Sub, sub, SubAssign, sub_assign);
use std::iter::Sum;
impl Sum for Modulo {
fn sum<I>(iter: I) -> Self
where
I: Iterator<Item = Modulo>,
{
iter.fold(Modulo(0), |a, b| a + b)
}
}
impl<'a> Sum<&'a Modulo> for Modulo {
fn sum<I>(iter: I) -> Self
where
I: Iterator<Item = &'a Self>,
{
iter.fold(Modulo(0), |a, b| a + b)
}
}