QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#552019 | #9255. Python Program | ucup-team296# | RE | 0ms | 0kb | Rust | 29.1kb | 2024-09-07 19:51:10 | 2024-09-07 19:51:11 |
answer
//
pub mod solution {
//{"name":"uc9_g","group":"Manual","url":"","interactive":false,"timeLimit":2000,"tests":[{"input":"","output":""}],"testType":"multiNumber","input":{"type":"stdin","fileName":null,"pattern":null},"output":{"type":"stdout","fileName":null,"pattern":null},"languages":{"java":{"taskClass":"uc9_g"}}}
use crate::algo_lib::io::input::Input;
use crate::algo_lib::io::output::Output;
use crate::algo_lib::misc::test_type::TaskType;
use crate::algo_lib::misc::test_type::TestType;
use crate::algo_lib::numbers::primes::sieve::primes;
type PreCalc = Vec<i64>;
fn solve(input: &mut Input, out: &mut Output, _test_case: usize, p: &mut PreCalc) {
let n = input.read_long();
let mut nc = n;
let mut pd = Vec::new();
for &i in p.iter() {
if i * i > nc {
break;
}
if nc % i == 0 {
let mut q = 0;
while nc % i == 0 {
nc /= i;
q += 1;
}
pd.push((i, q));
}
}
if nc > 1 {
pd.push((nc, 1));
}
let mut ans = 1i64;
for &(_, e) in pd.iter() {
ans *= 2 * e + 1;
}
// let mut rec = RecursiveFunction2::new(|f, mut d: i64, step: usize| {
// if step == pd.len() {
// dd.push(d);
// } else {
// let (p, e) = pd[step];
// for i in 0..=e {
// f.call(d, step + 1);
// if i < e {
// d *= p;
// }
// }
// }
// });
// rec.call(1, 0);
// dd.sort();
// let mut set = HashSet::new();
// for i in dd.indices() {
// for j in 0..=i {
// if n / dd[i] < dd[j] {
// break;
// }
// if (n / dd[i]) % dd[j] == 0 {
// set.insert(Rational::new(dd[j], dd[i]));
// }
// }
// }
out.print_line((ans + 1) / 2);
}
pub static TEST_TYPE: TestType = TestType::MultiNumber;
pub static TASK_TYPE: TaskType = TaskType::Classic;
pub(crate) fn run(mut input: Input, mut output: Output) -> bool {
let mut pre_calc = primes(100_000);
match TEST_TYPE {
TestType::Single => solve(&mut input, &mut output, 1, &mut pre_calc),
TestType::MultiNumber => {
let t = input.read();
for i in 1..=t {
solve(&mut input, &mut output, i, &mut pre_calc);
}
}
TestType::MultiEof => {
let mut i = 1;
while input.peek().is_some() {
solve(&mut input, &mut output, i, &mut pre_calc);
i += 1;
}
}
}
output.flush();
match TASK_TYPE {
TaskType::Classic => {
input.skip_whitespace();
input.peek().is_none()
}
TaskType::Interactive => true,
}
}
}
pub mod algo_lib {
pub mod collections {
pub mod bit_set {
use crate::algo_lib::collections::slice_ext::legacy_fill::LegacyFill;
use crate::algo_lib::numbers::num_traits::bit_ops::BitOps;
use std::ops::BitAndAssign;
use std::ops::BitOrAssign;
use std::ops::Index;
use std::ops::ShlAssign;
use std::ops::ShrAssign;
const TRUE: bool = true;
const FALSE: bool = false;
#[derive(Clone, Eq, PartialEq, Hash)]
pub struct BitSet {
data: Vec<u64>,
len: usize,
}
impl BitSet {
pub fn new(len: usize) -> Self {
let data_len = if len == 0 {
0
} else {
Self::index(len - 1) + 1
};
Self {
data: vec![0; data_len],
len,
}
}
pub fn from_slice(len: usize, set: &[usize]) -> Self {
let mut res = Self::new(len);
for &i in set {
res.set(i);
}
res
}
pub fn set(&mut self, at: usize) {
assert!(at < self.len);
self.data[Self::index(at)].set_bit(at & 63);
}
pub fn unset(&mut self, at: usize) {
assert!(at < self.len);
self.data[Self::index(at)].unset_bit(at & 63);
}
pub fn change(&mut self, at: usize, value: bool) {
if value {
self.set(at);
} else {
self.unset(at);
}
}
pub fn flip(&mut self, at: usize) {
self.change(at, !self[at]);
}
#[allow(clippy::len_without_is_empty)]
pub fn len(&self) -> usize {
self.len
}
pub fn fill(&mut self, value: bool) {
// 1.43
self.data.legacy_fill(if value { std::u64::MAX } else { 0 });
if value {
self.fix_last();
}
}
pub fn is_superset(&self, other: &Self) -> bool {
assert_eq!(self.len, other.len);
for i in 0..self.data.len() {
if self.data[i] & other.data[i] != other.data[i] {
return false;
}
}
true
}
pub fn is_subset(&self, other: &Self) -> bool {
other.is_superset(self)
}
pub fn iter(&self) -> impl Iterator<Item = usize> + '_ {
self.into_iter()
}
fn index(at: usize) -> usize {
at >> 6
}
pub fn count_ones(&self) -> usize {
self.data.iter().map(|x| x.count_ones() as usize).sum()
}
fn fix_last(&mut self) {
if self.len & 63 != 0 {
let mask = (1 << (self.len & 63)) - 1;
*self.data.last_mut().unwrap() &= mask;
}
}
}
pub struct BitSetIter<'s> {
at: usize,
inside: usize,
set: &'s BitSet,
}
impl<'s> Iterator for BitSetIter<'s> {
type Item = usize;
fn next(&mut self) -> Option<Self::Item> {
while self.at < self.set.data.len()
&& (self.inside == 64 || (self.set.data[self.at] >> self.inside) == 0)
{
self.at += 1;
self.inside = 0;
}
if self.at == self.set.data.len() {
None
} else {
while !self.set.data[self.at].is_set(self.inside) {
self.inside += 1;
}
let res = self.at * 64 + self.inside;
if res < self.set.len {
self.inside += 1;
Some(res)
} else {
None
}
}
}
}
impl<'a> IntoIterator for &'a BitSet {
type Item = usize;
type IntoIter = BitSetIter<'a>;
fn into_iter(self) -> Self::IntoIter {
BitSetIter {
at: 0,
inside: 0,
set: self,
}
}
}
impl BitOrAssign<&BitSet> for BitSet {
fn bitor_assign(&mut self, rhs: &BitSet) {
assert_eq!(self.len, rhs.len);
for (i, &j) in self.data.iter_mut().zip(rhs.data.iter()) {
*i |= j;
}
}
}
impl BitAndAssign<&BitSet> for BitSet {
fn bitand_assign(&mut self, rhs: &BitSet) {
assert_eq!(self.len, rhs.len);
for (i, &j) in self.data.iter_mut().zip(rhs.data.iter()) {
*i &= j;
}
}
}
impl ShlAssign<usize> for BitSet {
fn shl_assign(&mut self, rhs: usize) {
if rhs == 0 {
return;
}
let small_shift = rhs & 63;
if small_shift != 0 {
let mut carry = 0;
for i in 0..self.data.len() {
let new_carry = self.data[i] >> (64 - small_shift);
self.data[i] <<= small_shift;
self.data[i] |= carry;
carry = new_carry;
}
}
let big_shift = rhs >> 6;
if big_shift != 0 {
self.data.rotate_right(big_shift);
self.data[..big_shift].fill(0);
}
self.fix_last();
}
}
impl ShrAssign<usize> for BitSet {
fn shr_assign(&mut self, rhs: usize) {
if rhs == 0 {
return;
}
let small_shift = rhs & 63;
if small_shift != 0 {
let mut carry = 0;
for i in (0..self.data.len()).rev() {
let new_carry = self.data[i] << (64 - small_shift);
self.data[i] >>= small_shift;
self.data[i] |= carry;
carry = new_carry;
}
}
let big_shift = rhs >> 6;
if big_shift != 0 {
self.data.rotate_left(big_shift);
let from = self.data.len() - big_shift;
self.data[from..].fill(0);
}
}
}
impl Index<usize> for BitSet {
type Output = bool;
fn index(&self, at: usize) -> &Self::Output {
assert!(at < self.len);
if self.data[Self::index(at)].is_set(at & 63) {
&TRUE
} else {
&FALSE
}
}
}
impl From<Vec<bool>> for BitSet {
fn from(data: Vec<bool>) -> Self {
let mut res = Self::new(data.len());
for (i, &value) in data.iter().enumerate() {
res.change(i, value);
}
res
}
}
}
pub mod iter_ext {
pub mod collect {
pub trait IterCollect<T>: Iterator<Item = T> + Sized {
fn collect_vec(self) -> Vec<T> {
self.collect()
}
}
impl<T, I: Iterator<Item = T> + Sized> IterCollect<T> for I {}
}
}
pub mod slice_ext {
pub mod legacy_fill {
// 1.50
pub trait LegacyFill<T> {
fn legacy_fill(&mut self, val: T);
}
impl<T: Clone> LegacyFill<T> for [T] {
fn legacy_fill(&mut self, val: T) {
for el in self.iter_mut() {
*el = val.clone();
}
}
}
}
}
pub mod vec_ext {
pub mod default {
pub fn default_vec<T: Default>(len: usize) -> Vec<T> {
let mut v = Vec::with_capacity(len);
for _ in 0..len {
v.push(T::default());
}
v
}
}
}
}
pub mod io {
pub mod input {
use crate::algo_lib::collections::vec_ext::default::default_vec;
use std::io::Read;
pub struct Input<'s> {
input: &'s mut dyn Read,
buf: Vec<u8>,
at: usize,
buf_read: usize,
}
macro_rules! read_impl {
($t: ty, $read_name: ident, $read_vec_name: ident) => {
pub fn $read_name(&mut self) -> $t {
self.read()
}
pub fn $read_vec_name(&mut self, len: usize) -> Vec<$t> {
self.read_vec(len)
}
};
($t: ty, $read_name: ident, $read_vec_name: ident, $read_pair_vec_name: ident) => {
read_impl!($t, $read_name, $read_vec_name);
pub fn $read_pair_vec_name(&mut self, len: usize) -> Vec<($t, $t)> {
self.read_vec(len)
}
};
}
impl<'s> Input<'s> {
const DEFAULT_BUF_SIZE: usize = 4096;
pub fn new(input: &'s mut dyn Read) -> Self {
Self {
input,
buf: default_vec(Self::DEFAULT_BUF_SIZE),
at: 0,
buf_read: 0,
}
}
pub fn new_with_size(input: &'s mut dyn Read, buf_size: usize) -> Self {
Self {
input,
buf: default_vec(buf_size),
at: 0,
buf_read: 0,
}
}
pub fn get(&mut self) -> Option<u8> {
if self.refill_buffer() {
let res = self.buf[self.at];
self.at += 1;
if res == b'\r' {
if self.refill_buffer() && self.buf[self.at] == b'\n' {
self.at += 1;
}
return Some(b'\n');
}
Some(res)
} else {
None
}
}
pub fn peek(&mut self) -> Option<u8> {
if self.refill_buffer() {
let res = self.buf[self.at];
Some(if res == b'\r' { b'\n' } else { res })
} else {
None
}
}
pub fn skip_whitespace(&mut self) {
while let Some(b) = self.peek() {
if !char::from(b).is_whitespace() {
return;
}
self.get();
}
}
pub fn next_token(&mut self) -> Option<Vec<u8>> {
self.skip_whitespace();
let mut res = Vec::new();
while let Some(c) = self.get() {
if char::from(c).is_whitespace() {
break;
}
res.push(c);
}
if res.is_empty() {
None
} else {
Some(res)
}
}
//noinspection RsSelfConvention
pub fn is_exhausted(&mut self) -> bool {
self.peek().is_none()
}
//noinspection RsSelfConvention
pub fn is_empty(&mut self) -> bool {
self.skip_whitespace();
self.is_exhausted()
}
pub fn read<T: Readable>(&mut self) -> T {
T::read(self)
}
pub fn read_vec<T: Readable>(&mut self, size: usize) -> Vec<T> {
let mut res = Vec::with_capacity(size);
for _ in 0..size {
res.push(self.read());
}
res
}
pub fn read_char(&mut self) -> char {
self.skip_whitespace();
self.get().unwrap().into()
}
read_impl!(u32, read_unsigned, read_unsigned_vec);
read_impl!(u64, read_u64, read_u64_vec);
read_impl!(usize, read_size, read_size_vec, read_size_pair_vec);
read_impl!(i32, read_int, read_int_vec, read_int_pair_vec);
read_impl!(i64, read_long, read_long_vec, read_long_pair_vec);
read_impl!(i128, read_i128, read_i128_vec);
fn refill_buffer(&mut self) -> bool {
if self.at == self.buf_read {
self.at = 0;
self.buf_read = self.input.read(&mut self.buf).unwrap();
self.buf_read != 0
} else {
true
}
}
}
pub trait Readable {
fn read(input: &mut Input) -> Self;
}
impl Readable for char {
fn read(input: &mut Input) -> Self {
input.read_char()
}
}
impl<T: Readable> Readable for Vec<T> {
fn read(input: &mut Input) -> Self {
let size = input.read();
input.read_vec(size)
}
}
macro_rules! read_integer {
($($t:ident)+) => {$(
impl Readable for $t {
fn read(input: &mut Input) -> Self {
input.skip_whitespace();
let mut c = input.get().unwrap();
let sgn = match c {
b'-' => {
c = input.get().unwrap();
true
}
b'+' => {
c = input.get().unwrap();
false
}
_ => false,
};
let mut res = 0;
loop {
assert!(c.is_ascii_digit());
res *= 10;
let d = (c - b'0') as $t;
if sgn {
res -= d;
} else {
res += d;
}
match input.get() {
None => break,
Some(ch) => {
if ch.is_ascii_whitespace() {
break;
} else {
c = ch;
}
}
}
}
res
}
}
)+};
}
read_integer!(i8 i16 i32 i64 i128 isize u8 u16 u32 u64 u128 usize);
macro_rules! tuple_readable {
($($name:ident)+) => {
impl<$($name: Readable), +> Readable for ($($name,)+) {
fn read(input: &mut Input) -> Self {
($($name::read(input),)+)
}
}
}
}
tuple_readable! {T}
tuple_readable! {T U}
tuple_readable! {T U V}
tuple_readable! {T U V X}
tuple_readable! {T U V X Y}
tuple_readable! {T U V X Y Z}
tuple_readable! {T U V X Y Z A}
tuple_readable! {T U V X Y Z A B}
tuple_readable! {T U V X Y Z A B C}
tuple_readable! {T U V X Y Z A B C D}
tuple_readable! {T U V X Y Z A B C D E}
tuple_readable! {T U V X Y Z A B C D E F}
impl Read for Input<'_> {
fn read(&mut self, buf: &mut [u8]) -> std::io::Result<usize> {
if self.at == self.buf_read {
self.input.read(buf)
} else {
let mut i = 0;
while i < buf.len() && self.at < self.buf_read {
buf[i] = self.buf[self.at];
i += 1;
self.at += 1;
}
Ok(i)
}
}
}
}
pub mod output {
use crate::algo_lib::collections::vec_ext::default::default_vec;
use std::cmp::Reverse;
use std::io::stderr;
use std::io::Stderr;
use std::io::Write;
#[derive(Copy, Clone)]
pub enum BoolOutput {
YesNo,
YesNoCaps,
PossibleImpossible,
Custom(&'static str, &'static str),
}
impl BoolOutput {
pub fn output(&self, output: &mut Output, val: bool) {
(if val { self.yes() } else { self.no() }).write(output);
}
fn yes(&self) -> &str {
match self {
BoolOutput::YesNo => "Yes",
BoolOutput::YesNoCaps => "YES",
BoolOutput::PossibleImpossible => "Possible",
BoolOutput::Custom(yes, _) => yes,
}
}
fn no(&self) -> &str {
match self {
BoolOutput::YesNo => "No",
BoolOutput::YesNoCaps => "NO",
BoolOutput::PossibleImpossible => "Impossible",
BoolOutput::Custom(_, no) => no,
}
}
}
pub struct Output<'s> {
output: &'s mut dyn Write,
buf: Vec<u8>,
at: usize,
auto_flush: bool,
bool_output: BoolOutput,
}
impl<'s> Output<'s> {
const DEFAULT_BUF_SIZE: usize = 4096;
pub fn new(output: &'s mut dyn Write) -> Self {
Self {
output,
buf: default_vec(Self::DEFAULT_BUF_SIZE),
at: 0,
auto_flush: false,
bool_output: BoolOutput::YesNoCaps,
}
}
pub fn new_with_auto_flush(output: &'s mut dyn Write) -> Self {
Self {
output,
buf: default_vec(Self::DEFAULT_BUF_SIZE),
at: 0,
auto_flush: true,
bool_output: BoolOutput::YesNoCaps,
}
}
pub fn flush(&mut self) {
if self.at != 0 {
self.output.write_all(&self.buf[..self.at]).unwrap();
self.output.flush().unwrap();
self.at = 0;
}
}
pub fn print<T: Writable>(&mut self, s: T) {
s.write(self);
self.maybe_flush();
}
pub fn print_line<T: Writable>(&mut self, s: T) {
self.print(s);
self.put(b'\n');
self.maybe_flush();
}
pub fn put(&mut self, b: u8) {
self.buf[self.at] = b;
self.at += 1;
if self.at == self.buf.len() {
self.flush();
}
}
pub fn maybe_flush(&mut self) {
if self.auto_flush {
self.flush();
}
}
pub fn print_per_line<T: Writable>(&mut self, arg: &[T]) {
for i in arg {
i.write(self);
self.put(b'\n');
}
}
pub fn print_iter<T: Writable, I: Iterator<Item = T>>(&mut self, iter: I) {
let mut first = true;
for e in iter {
if first {
first = false;
} else {
self.put(b' ');
}
e.write(self);
}
}
pub fn set_bool_output(&mut self, bool_output: BoolOutput) {
self.bool_output = bool_output;
}
}
impl Write for Output<'_> {
fn write(&mut self, buf: &[u8]) -> std::io::Result<usize> {
let mut start = 0usize;
let mut rem = buf.len();
while rem > 0 {
let len = (self.buf.len() - self.at).min(rem);
self.buf[self.at..self.at + len].copy_from_slice(&buf[start..start + len]);
self.at += len;
if self.at == self.buf.len() {
self.flush();
}
start += len;
rem -= len;
}
self.maybe_flush();
Ok(buf.len())
}
fn flush(&mut self) -> std::io::Result<()> {
self.flush();
Ok(())
}
}
pub trait Writable {
fn write(&self, output: &mut Output);
}
impl Writable for &str {
fn write(&self, output: &mut Output) {
output.write_all(self.as_bytes()).unwrap();
}
}
impl Writable for String {
fn write(&self, output: &mut Output) {
output.write_all(self.as_bytes()).unwrap();
}
}
impl Writable for char {
fn write(&self, output: &mut Output) {
output.put(*self as u8);
}
}
impl<T: Writable> Writable for [T] {
fn write(&self, output: &mut Output) {
output.print_iter(self.iter());
}
}
impl<T: Writable, const N: usize> Writable for [T; N] {
fn write(&self, output: &mut Output) {
output.print_iter(self.iter());
}
}
impl<T: Writable + ?Sized> Writable for &T {
fn write(&self, output: &mut Output) {
T::write(self, output)
}
}
impl<T: Writable> Writable for Vec<T> {
fn write(&self, output: &mut Output) {
self.as_slice().write(output);
}
}
impl Writable for () {
fn write(&self, _output: &mut Output) {}
}
macro_rules! write_to_string {
($($t:ident)+) => {$(
impl Writable for $t {
fn write(&self, output: &mut Output) {
self.to_string().write(output);
}
}
)+};
}
write_to_string!(u8 u16 u32 u64 u128 usize i8 i16 i32 i64 i128 isize);
macro_rules! tuple_writable {
($name0:ident $($name:ident: $id:tt )*) => {
impl<$name0: Writable, $($name: Writable,)*> Writable for ($name0, $($name,)*) {
fn write(&self, out: &mut Output) {
self.0.write(out);
$(
out.put(b' ');
self.$id.write(out);
)*
}
}
}
}
tuple_writable! {T}
tuple_writable! {T U:1}
tuple_writable! {T U:1 V:2}
tuple_writable! {T U:1 V:2 X:3}
tuple_writable! {T U:1 V:2 X:3 Y:4}
tuple_writable! {T U:1 V:2 X:3 Y:4 Z:5}
tuple_writable! {T U:1 V:2 X:3 Y:4 Z:5 A:6}
tuple_writable! {T U:1 V:2 X:3 Y:4 Z:5 A:6 B:7}
tuple_writable! {T U:1 V:2 X:3 Y:4 Z:5 A:6 B:7 C:8}
impl<T: Writable> Writable for Option<T> {
fn write(&self, output: &mut Output) {
match self {
None => (-1).write(output),
Some(t) => t.write(output),
}
}
}
impl Writable for bool {
fn write(&self, output: &mut Output) {
let bool_output = output.bool_output;
bool_output.output(output, *self)
}
}
impl<T: Writable> Writable for Reverse<T> {
fn write(&self, output: &mut Output) {
self.0.write(output);
}
}
static mut ERR: Option<Stderr> = None;
pub fn err() -> Output<'static> {
unsafe {
if ERR.is_none() {
ERR = Some(stderr());
}
Output::new_with_auto_flush(ERR.as_mut().unwrap())
}
}
}
}
pub mod misc {
pub mod test_type {
pub enum TestType {
Single,
MultiNumber,
MultiEof,
}
pub enum TaskType {
Classic,
Interactive,
}
}
}
pub mod numbers {
pub mod num_traits {
pub mod algebra {
use crate::algo_lib::numbers::num_traits::invertible::Invertible;
use std::ops::Add;
use std::ops::AddAssign;
use std::ops::Div;
use std::ops::DivAssign;
use std::ops::Mul;
use std::ops::MulAssign;
use std::ops::Neg;
use std::ops::Rem;
use std::ops::RemAssign;
use std::ops::Sub;
use std::ops::SubAssign;
pub trait Zero {
fn zero() -> Self;
}
pub trait One {
fn one() -> Self;
}
pub trait AdditionMonoid: Add<Output = Self> + AddAssign + Zero + Eq + Sized {}
impl<T: Add<Output = Self> + AddAssign + Zero + Eq> AdditionMonoid for T {}
pub trait AdditionMonoidWithSub: AdditionMonoid + Sub<Output = Self> + SubAssign {}
impl<T: AdditionMonoid + Sub<Output = Self> + SubAssign> AdditionMonoidWithSub for T {}
pub trait AdditionGroup: AdditionMonoidWithSub + Neg<Output = Self> {}
impl<T: AdditionMonoidWithSub + Neg<Output = Self>> AdditionGroup for T {}
pub trait MultiplicationMonoid: Mul<Output = Self> + MulAssign + One + Eq + Sized {}
impl<T: Mul<Output = Self> + MulAssign + One + Eq> MultiplicationMonoid for T {}
pub trait IntegerMultiplicationMonoid:
MultiplicationMonoid + Div<Output = Self> + Rem<Output = Self> + DivAssign + RemAssign
{
}
impl<T: MultiplicationMonoid + Div<Output = Self> + Rem<Output = Self> + DivAssign + RemAssign>
IntegerMultiplicationMonoid for T
{
}
pub trait MultiplicationGroup:
MultiplicationMonoid + Div<Output = Self> + DivAssign + Invertible<Output = Self>
{
}
impl<T: MultiplicationMonoid + Div<Output = Self> + DivAssign + Invertible<Output = Self>>
MultiplicationGroup for T
{
}
pub trait SemiRing: AdditionMonoid + MultiplicationMonoid {}
impl<T: AdditionMonoid + MultiplicationMonoid> SemiRing for T {}
pub trait SemiRingWithSub: AdditionMonoidWithSub + SemiRing {}
impl<T: AdditionMonoidWithSub + SemiRing> SemiRingWithSub for T {}
pub trait Ring: SemiRing + AdditionGroup {}
impl<T: SemiRing + AdditionGroup> Ring for T {}
pub trait IntegerSemiRing: SemiRing + IntegerMultiplicationMonoid {}
impl<T: SemiRing + IntegerMultiplicationMonoid> IntegerSemiRing for T {}
pub trait IntegerSemiRingWithSub: SemiRingWithSub + IntegerSemiRing {}
impl<T: SemiRingWithSub + IntegerSemiRing> IntegerSemiRingWithSub for T {}
pub trait IntegerRing: IntegerSemiRing + Ring {}
impl<T: IntegerSemiRing + Ring> IntegerRing for T {}
pub trait Field: Ring + MultiplicationGroup {}
impl<T: Ring + MultiplicationGroup> Field for T {}
macro_rules! zero_one_integer_impl {
($($t: ident)+) => {$(
impl Zero for $t {
fn zero() -> Self {
0
}
}
impl One for $t {
fn one() -> Self {
1
}
}
)+};
}
zero_one_integer_impl!(i128 i64 i32 i16 i8 isize u128 u64 u32 u16 u8 usize);
}
pub mod as_index {
pub trait AsIndex {
fn from_index(idx: usize) -> Self;
fn to_index(self) -> usize;
}
macro_rules! from_index_impl {
($($t: ident)+) => {$(
impl AsIndex for $t {
fn from_index(idx: usize) -> Self {
idx as $t
}
fn to_index(self) -> usize {
self as usize
}
}
)+};
}
from_index_impl!(i128 i64 i32 i16 i8 isize u128 u64 u32 u16 u8 usize);
}
pub mod bit_ops {
use crate::algo_lib::numbers::num_traits::algebra::One;
use crate::algo_lib::numbers::num_traits::algebra::Zero;
use std::ops::BitAnd;
use std::ops::BitAndAssign;
use std::ops::BitOr;
use std::ops::BitOrAssign;
use std::ops::BitXor;
use std::ops::BitXorAssign;
use std::ops::Not;
use std::ops::RangeInclusive;
use std::ops::Shl;
use std::ops::ShlAssign;
use std::ops::Shr;
use std::ops::ShrAssign;
pub trait BitOps:
Copy
+ BitAnd<Output = Self>
+ BitAndAssign
+ BitOr<Output = Self>
+ BitOrAssign
+ BitXor<Output = Self>
+ BitXorAssign
+ Not<Output = Self>
+ Shl<usize, Output = Self>
+ ShlAssign<usize>
+ Shr<usize, Output = Self>
+ ShrAssign<usize>
+ Zero
+ One
+ PartialEq
{
fn bit(at: usize) -> Self {
Self::one() << at
}
fn is_set(&self, at: usize) -> bool {
(*self >> at & Self::one()) == Self::one()
}
fn set_bit(&mut self, at: usize) {
*self |= Self::bit(at)
}
fn unset_bit(&mut self, at: usize) {
*self &= !Self::bit(at)
}
#[must_use]
fn with_bit(mut self, at: usize) -> Self {
self.set_bit(at);
self
}
#[must_use]
fn without_bit(mut self, at: usize) -> Self {
self.unset_bit(at);
self
}
fn flip_bit(&mut self, at: usize) {
*self ^= Self::bit(at)
}
fn all_bits(n: usize) -> Self {
let mut res = Self::zero();
for i in 0..n {
res.set_bit(i);
}
res
}
fn iter_all(n: usize) -> RangeInclusive<Self> {
Self::zero()..=Self::all_bits(n)
}
}
impl<
T: Copy
+ BitAnd<Output = Self>
+ BitAndAssign
+ BitOr<Output = Self>
+ BitOrAssign
+ BitXor<Output = Self>
+ BitXorAssign
+ Not<Output = Self>
+ Shl<usize, Output = Self>
+ ShlAssign<usize>
+ Shr<usize, Output = Self>
+ ShrAssign<usize>
+ One
+ Zero
+ PartialEq,
> BitOps for T
{
}
pub trait Bits: BitOps {
fn bits() -> u32;
}
macro_rules! bits_integer_impl {
($($t: ident $bits: expr),+) => {$(
impl Bits for $t {
fn bits() -> u32 {
$bits
}
}
)+};
}
bits_integer_impl!(i128 128, i64 64, i32 32, i16 16, i8 8, isize 64, u128 128, u64 64, u32 32, u16 16, u8 8, usize 64);
}
pub mod invertible {
pub trait Invertible {
type Output;
fn inv(&self) -> Option<Self::Output>;
}
}
}
pub mod primes {
pub mod sieve {
use crate::algo_lib::collections::bit_set::BitSet;
use crate::algo_lib::collections::iter_ext::collect::IterCollect;
use crate::algo_lib::numbers::num_traits::as_index::AsIndex;
pub fn primality_table(n: usize) -> BitSet {
let mut res = BitSet::new(n);
res.fill(true);
if n > 0 {
res.unset(0);
}
if n > 1 {
res.unset(1);
}
let mut i = 2;
while i * i < n {
if res[i] {
for j in ((i * i)..n).step_by(i) {
res.unset(j);
}
}
i += 1;
}
res
}
pub fn primes<T: AsIndex>(n: usize) -> Vec<T> {
primality_table(n)
.into_iter()
.map(|i| T::from_index(i))
.collect_vec()
}
pub fn divisor_table<T: AsIndex + PartialEq>(n: usize) -> Vec<T> {
let mut res = (0..n).map(|i| T::from_index(i)).collect_vec();
let mut i = 2;
while i * i < n {
if res[i] == T::from_index(i) {
for j in ((i * i)..n).step_by(i) {
res[j] = T::from_index(i);
}
}
i += 1;
}
res
}
}
}
}
}
fn main() {
let mut sin = std::io::stdin();
let input = algo_lib::io::input::Input::new(&mut sin);
let mut stdout = std::io::stdout();
let output = algo_lib::io::output::Output::new(&mut stdout);
solution::run(input, output);
}
Details
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Test #1:
score: 0
Runtime Error
input:
ans=0 for a in range(1,3): for b in range(5,1,-2): ans+=b print(ans)