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P18111.rs
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/*
Author : quickn (quickn.ga)
Email : [email protected]
*/
use std::str;
use std::io::{self, BufWriter, Write};
/* https://github.com/EbTech/rust-algorithms */
/// Same API as Scanner but nearly twice as fast, using horribly unsafe dark arts
/// **REQUIRES** Rust 1.34 or higher
pub struct UnsafeScanner<R> {
reader: R,
buf_str: Vec<u8>,
buf_iter: str::SplitAsciiWhitespace<'static>,
}
impl<R: io::BufRead> UnsafeScanner<R> {
pub fn new(reader: R) -> Self {
Self {
reader,
buf_str: Vec::new(),
buf_iter: "".split_ascii_whitespace(),
}
}
/// This function should be marked unsafe, but noone has time for that in a
/// programming contest. Use at your own risk!
pub fn token<T: str::FromStr>(&mut self) -> T {
loop {
if let Some(token) = self.buf_iter.next() {
return token.parse().ok().expect("Failed parse");
}
self.buf_str.clear();
self.reader
.read_until(b'\n', &mut self.buf_str)
.expect("Failed read");
self.buf_iter = unsafe {
let slice = str::from_utf8_unchecked(&self.buf_str);
std::mem::transmute(slice.split_ascii_whitespace())
}
}
}
}
fn main() {
let (stdin, stdout) = (io::stdin(), io::stdout());
let (mut scan, mut sout) = (UnsafeScanner::new(stdin.lock()), BufWriter::new(stdout.lock()));
let (n, m, b): (usize, usize, u32) = (scan.token(), scan.token(), scan.token());
let mut board: Vec<Vec<u32>> = vec![vec![0;m];n];
for i in 0..n {
for j in 0..m {
board[i][j] = scan.token();
}
}
let (mut min_t, mut max_h) = (1_000_000_000, 0);
for h in 0..=256 {
let (mut under, mut over): (u32, u32) = (0, 0);
for i in 0..n {
for j in 0..m {
if h < board[i][j] {
over += board[i][j] - h;
} else if h > board[i][j] {
under += h - board[i][j];
}
}
}
if over + b >= under {
let t = (over<<1) + under;
if min_t > t {
min_t = t;
max_h = h;
} else if min_t == t && max_h < h {
max_h = h;
}
}
}
writeln!(sout, "{} {}", min_t, max_h).ok();
}