57 lines
1.3 KiB
Rust
57 lines
1.3 KiB
Rust
use std::{cmp::max, io::stdin};
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fn get_value(r: i32, c: i32) -> i32 {
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let d = max(r.abs(), c.abs());
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if d == 0 {
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return 1;
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}
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let prev_max = (2 * d - 1) * (2 * d - 1);
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if c == d && r < d {
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prev_max + (d - r)
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} else if r == -d {
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prev_max + 2 * d + (d - c)
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} else if c == -d {
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prev_max + 4 * d + (r + d)
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} else {
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prev_max + 6 * d + c + d
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}
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}
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fn main() {
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let mut line = String::new();
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stdin().read_line(&mut line).unwrap();
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let mut iter = line
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.split_ascii_whitespace()
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.map(|x| x.parse::<i32>().unwrap());
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let (r1, c1, r2, c2) = (
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iter.next().unwrap(),
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iter.next().unwrap(),
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iter.next().unwrap(),
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iter.next().unwrap(),
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);
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let mut spiral = vec![vec![0; (c2 - c1 + 1) as usize]; (r2 - r1 + 1) as usize];
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let mut max_v = 0;
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for i in r1..=r2 {
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for j in c1..=c2 {
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let v = get_value(i, j);
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max_v = max(max_v, v);
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spiral[(i - r1) as usize][(j - c1) as usize] = v;
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}
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}
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let offset = max_v.to_string().len();
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for i in 0..(r2 - r1 + 1) as usize {
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for j in 0..(c2 - c1) as usize {
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print!("{:width$} ", spiral[i][j], width = offset);
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}
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print!("{:width$}", spiral[i][(c2 - c1) as usize], width = offset);
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println!();
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}
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}
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