I realized having to host this potentially indefinitely might not be the best idea, so I am going to shut down this gitea instance eventually.
You’ll have time, at least until the end of 2022, probably longer, but please just get all your stuff somewhere safe in case we ever disappear.
If any of your build scripts rely on my (kageru’s) projects hosted here, check my Github or IEW on Github for encoding projects. If you can’t find what you’re looking there, tell me to migrate it.
master
attila 4 years ago
parent e0c7e9f1a6
commit c0b3f6dc47

268
day11/Cargo.lock generated

@ -0,0 +1,268 @@
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@ -0,0 +1,7 @@
[package]
name = "day11"
version = "0.1.0"
authors = ["attila <daf276@gmx.de>"]
[dependencies]
arrayfire = "3.6.0"

@ -0,0 +1,64 @@
extern crate arrayfire;
use arrayfire::{Array, Dim4, convolve2};
fn main() {
let grid = Array::new(&init_grid(), Dim4::new(&[300, 300, 1, 1]));
let mut max = -99999;
let mut max_size = 0;
let mut y_of_max_array = 0;
let mut x_of_max_array = 0;
let mut result = vec![0; 90000];
for size in 1..300 {
let kernel = arrayfire::constant(1.0, Dim4::new(&[size, size, 1, 1]));
convolve2(&grid, &kernel, arrayfire::ConvMode::DEFAULT, arrayfire::ConvDomain::AUTO).host(&mut result);
let mut max_value = -99999;
let mut max_x = 0;
let mut max_y = 0;
for y in (size / 2) as usize..(300 - (size / 2) as usize) {
for x in (size / 2) as usize..(300 - (size / 2) as usize) {
if result[y * 300 + x] > max_value {
max_value = result[y * 300 + x];
max_y = y;
max_x = x;
}
}
}
if max_value > max {
max = max_value;
y_of_max_array = max_y;
x_of_max_array = max_x;
max_size = size;
}
println!("{} {} {}", max_x, max_y, max_value);
}
println!("{} {} {}", x_of_max_array, y_of_max_array, max_size);
}
fn init_grid() -> [i32; 90000] {
let mut grid: [i32; 90000] = [0; 90000];
for y in 0..300 {
for x in 0..300 {
grid[y * 300 + x] = power(x as i32, y as i32);
}
}
grid
}
fn power(x: i32, y: i32) -> i32 {
let rack_id = x + 10;
let power_level = (rack_id * y + 7672) * rack_id;
let partial = (power_level / 100) % 10;
(partial - 5)
}
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