結果
問題 | No.914 Omiyage |
ユーザー | nebocco |
提出日時 | 2021-03-03 20:08:56 |
言語 | Rust (1.77.0 + proconio) |
結果 |
AC
|
実行時間 | 1 ms / 2,000 ms |
コード長 | 8,663 bytes |
コンパイル時間 | 13,266 ms |
コンパイル使用メモリ | 401,608 KB |
実行使用メモリ | 6,824 KB |
最終ジャッジ日時 | 2024-10-03 09:01:05 |
合計ジャッジ時間 | 12,156 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
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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
6,816 KB |
testcase_01 | AC | 1 ms
6,816 KB |
testcase_02 | AC | 1 ms
6,820 KB |
testcase_03 | AC | 1 ms
6,824 KB |
testcase_04 | AC | 1 ms
6,816 KB |
testcase_05 | AC | 1 ms
6,820 KB |
testcase_06 | AC | 1 ms
6,816 KB |
testcase_07 | AC | 1 ms
6,816 KB |
testcase_08 | AC | 1 ms
6,820 KB |
testcase_09 | AC | 1 ms
6,816 KB |
testcase_10 | AC | 1 ms
6,820 KB |
testcase_11 | AC | 1 ms
6,820 KB |
testcase_12 | AC | 1 ms
6,816 KB |
testcase_13 | AC | 1 ms
6,816 KB |
testcase_14 | AC | 0 ms
6,816 KB |
testcase_15 | AC | 1 ms
6,820 KB |
testcase_16 | AC | 1 ms
6,816 KB |
testcase_17 | AC | 1 ms
6,816 KB |
testcase_18 | AC | 1 ms
6,816 KB |
testcase_19 | AC | 1 ms
6,820 KB |
testcase_20 | AC | 1 ms
6,820 KB |
ソースコード
fn main() { let mut io = IO::new(); input!{ from io, n: usize, m: usize, k: usize, a: [[usize; m]; n] } let mut bit = BitSet::new(k + 1); bit.flip(0); for b in &a { let mut nb = BitSet::new(k + 1); for &v in b { nb = nb | bit.clone() << v; } bit = nb; } let l = bit.collect().into_iter().map(|v| v as usize).filter(|&v| v <= k).max().unwrap_or(k + 1); io.println(k as isize - l as isize); } use std::ops::{Shl, Shr, BitAnd, BitOr, BitXor, Not}; #[derive(Clone)] pub struct BitSet { data: Vec<u32>, size: usize } impl BitSet { pub fn new(size: usize) -> Self { let data = vec![0; (size >> 5) + 1]; BitSet{ data, size } } pub fn fill(&mut self) { self.data.iter_mut().for_each(|x| *x = 0xffffffff ); } pub fn access(&self, pos: usize) -> bool { (self.data[pos >> 5] >> (pos & 31)) & 1 == 1 } pub fn set(&mut self, pos: usize, v: bool) { if v { self.data[pos >> 5] |= 1 << (pos & 31); } else { self.data[pos >> 5] &= !(1 << (pos & 31)); } } pub fn flip(&mut self, pos: usize) { self.data[pos >> 5] ^= 1 << (pos & 31); } pub fn collect(&self) -> Vec<u64> { (0..self.size) .filter(|&i| self.access(i)) .map(|x| x as u64) .collect::<Vec<u64>>() } fn resize(&mut self, l: usize) { if self.size > l { return; } self.data.resize((l >> 5) + 1, 0); self.size = l; } } impl BitAnd for BitSet { type Output = Self; fn bitand(mut self, rhs: Self) -> Self { let m = std::cmp::max(self.size, rhs.size); self.resize(m); for (u, v) in self.data.iter_mut().zip(rhs.data.iter()) { *u &= v; } self } } impl BitOr for BitSet { type Output = Self; fn bitor(mut self, rhs: Self) -> Self { let m = std::cmp::max(self.size, rhs.size); self.resize(m); for (u, v) in self.data.iter_mut().zip(rhs.data.iter()) { *u |= v; } self } } impl BitXor for BitSet { type Output = Self; fn bitxor(mut self, rhs: Self) -> Self { let m = std::cmp::max(self.size, rhs.size); self.resize(m); for (u, v) in self.data.iter_mut().zip(rhs.data.iter()) { *u ^= v; } self } } impl Not for BitSet { type Output = Self; fn not(mut self) -> Self { for u in self.data.iter_mut() { *u = !*u; } self } } impl Shr<usize> for BitSet { type Output = Self; fn shr(mut self, rhs: usize) -> Self::Output { let big = rhs >> 5; let sml = (rhs & 31) as u32; let mask = (1 << sml) - 1; for i in 0..self.data.len() { self.data[i] = if i + big < self.data.len() { self.data[i+big] } else { 0 }; } let mut r = 0; for i in (0..self.data.len()).rev() { let u = self.data[i]; self.data[i] = (u & !mask | r).rotate_right(sml); r = u & mask; } self } } impl Shl<usize> for BitSet { type Output = Self; fn shl(mut self, rhs: usize) -> Self::Output { let n = self.data.len(); let big = rhs >> 5; let sml = (rhs & 31) as u32; let mask = (1 << sml) - 1; for i in (0..n).rev() { self.data[i] = if i >= big { self.data[i-big] } else { 0 }; } let mut r = 0; for i in 0..n { let u = self.data[i].rotate_left(sml); self.data[i] = u & !mask | r; r = u & mask; } self.data[n-1] &= (1 << (self.size & 31)) - 1; self } } // ------------ io module start ------------ use std::io::{stdout, BufWriter, Read, StdoutLock, Write}; pub struct IO { iter: std::str::SplitAsciiWhitespace<'static>, buf: BufWriter<StdoutLock<'static>>, } impl IO { pub fn new() -> Self { let mut input = String::new(); std::io::stdin().read_to_string(&mut input).unwrap(); let input = Box::leak(input.into_boxed_str()); let out = Box::new(stdout()); IO { iter: input.split_ascii_whitespace(), buf: BufWriter::new(Box::leak(out).lock()), } } fn scan_str(&mut self) -> &'static str { self.iter.next().unwrap() } pub fn scan<T: Scan>(&mut self) -> <T as Scan>::Output { <T as Scan>::scan(self) } pub fn scan_vec<T: Scan>(&mut self, n: usize) -> Vec<<T as Scan>::Output> { (0..n).map(|_| self.scan::<T>()).collect() } pub fn print<T: Print>(&mut self, x: T) { <T as Print>::print(self, x); } pub fn println<T: Print>(&mut self, x: T) { self.print(x); self.print("\n"); } pub fn iterln<T: Print, I: Iterator<Item = T>>(&mut self, mut iter: I, delim: &str) { if let Some(v) = iter.next() { self.print(v); for v in iter { self.print(delim); self.print(v); } } self.print("\n"); } pub fn flush(&mut self) { self.buf.flush().unwrap(); } } impl Default for IO { fn default() -> Self { Self::new() } } pub trait Scan { type Output; fn scan(io: &mut IO) -> Self::Output; } macro_rules! impl_scan { ($($t:tt),*) => { $( impl Scan for $t { type Output = Self; fn scan(s: &mut IO) -> Self::Output { s.scan_str().parse().unwrap() } } )* }; } impl_scan!(i16, i32, i64, isize, u16, u32, u64, usize, String, f32, f64); pub enum Bytes {} impl Scan for Bytes { type Output = &'static [u8]; fn scan(s: &mut IO) -> Self::Output { s.scan_str().as_bytes() } } pub enum Chars {} impl Scan for Chars { type Output = Vec<char>; fn scan(s: &mut IO) -> Self::Output { s.scan_str().chars().collect() } } pub enum Usize1 {} impl Scan for Usize1 { type Output = usize; fn scan(s: &mut IO) -> Self::Output { s.scan::<usize>().wrapping_sub(1) } } impl<T: Scan, U: Scan> Scan for (T, U) { type Output = (T::Output, U::Output); fn scan(s: &mut IO) -> Self::Output { (T::scan(s), U::scan(s)) } } impl<T: Scan, U: Scan, V: Scan> Scan for (T, U, V) { type Output = (T::Output, U::Output, V::Output); fn scan(s: &mut IO) -> Self::Output { (T::scan(s), U::scan(s), V::scan(s)) } } impl<T: Scan, U: Scan, V: Scan, W: Scan> Scan for (T, U, V, W) { type Output = (T::Output, U::Output, V::Output, W::Output); fn scan(s: &mut IO) -> Self::Output { (T::scan(s), U::scan(s), V::scan(s), W::scan(s)) } } pub trait Print { fn print(w: &mut IO, x: Self); } macro_rules! impl_print_int { ($($t:ty),*) => { $( impl Print for $t { fn print(w: &mut IO, x: Self) { w.buf.write_all(x.to_string().as_bytes()).unwrap(); } } )* }; } impl_print_int!(i16, i32, i64, isize, u16, u32, u64, usize, f32, f64); impl Print for u8 { fn print(w: &mut IO, x: Self) { w.buf.write_all(&[x]).unwrap(); } } impl Print for &[u8] { fn print(w: &mut IO, x: Self) { w.buf.write_all(x).unwrap(); } } impl Print for &str { fn print(w: &mut IO, x: Self) { w.print(x.as_bytes()); } } impl Print for String { fn print(w: &mut IO, x: Self) { w.print(x.as_bytes()); } } impl<T: Print, U: Print> Print for (T, U) { fn print(w: &mut IO, (x, y): Self) { w.print(x); w.print(" "); w.print(y); } } impl<T: Print, U: Print, V: Print> Print for (T, U, V) { fn print(w: &mut IO, (x, y, z): Self) { w.print(x); w.print(" "); w.print(y); w.print(" "); w.print(z); } } mod neboccoio_macro { #[macro_export] macro_rules! input { (@start $io:tt @read @rest) => {}; (@start $io:tt @read @rest, $($rest: tt)*) => { input!(@start $io @read @rest $($rest)*) }; (@start $io:tt @read @rest mut $($rest:tt)*) => { input!(@start $io @read @mut [mut] @rest $($rest)*) }; (@start $io:tt @read @rest $($rest:tt)*) => { input!(@start $io @read @mut [] @rest $($rest)*) }; (@start $io:tt @read @mut [$($mut:tt)?] @rest $var:tt: [[$kind:tt; $len1:expr]; $len2:expr] $($rest:tt)*) => { let $($mut)* $var = (0..$len2).map(|_| $io.scan_vec::<$kind>($len1)).collect::<Vec<Vec<$kind>>>(); input!(@start $io @read @rest $($rest)*) }; (@start $io:tt @read @mut [$($mut:tt)?] @rest $var:tt: [$kind:tt; $len:expr] $($rest:tt)*) => { let $($mut)* $var = $io.scan_vec::<$kind>($len); input!(@start $io @read @rest $($rest)*) }; (@start $io:tt @read @mut [$($mut:tt)?] @rest $var:tt: $kind:tt $($rest:tt)*) => { let $($mut)* $var = $io.scan::<$kind>(); input!(@start $io @read @rest $($rest)*) }; (from $io:tt $($rest:tt)*) => { input!(@start $io @read @rest $($rest)*) }; } } // ------------ io module end ------------