Updates

december_13/src/main.rs

@@ -0,0 +1,112 @@
+use std::fs::File;
+use std::io::{BufReader};
+use std::io::prelude::*;
+
+fn main(){
+    let file = File::open("./input.txt").expect("Read failed");
+    let reader = BufReader::new(file);
+
+    let mut line_vec = Vec::new();
+
+    for line in reader.lines() {
+        line_vec.push(line.unwrap());
+    }
+
+    let mut coordinates: Vec<(i32, i32)> = Vec::new();
+    let mut folds: Vec<(char, i32)> = Vec::new();
+
+    let mut processing_coordinates = true;
+    
+    // Get coordinates
+    for line in &line_vec {
+        let _t = line.trim();
+        if line.trim().len() < 2 {
+            processing_coordinates = false;
+        } else if processing_coordinates {
+            let split_string = line.split(",").collect::<Vec<&str>>();
+            let x: i32 = split_string[0].to_owned().parse().unwrap();
+            let y: i32 = split_string[1].to_owned().parse().unwrap();
+            coordinates.push( (x, y) );
+        } else {
+            let split_string = line.split(" ").collect::<Vec<&str>>();
+            let split_coords = split_string[2].split("=").collect::<Vec<&str>>();
+            let split_direction: char = split_coords[0].to_owned().parse().unwrap();
+            let split_cord: i32 = split_coords[1].to_owned().parse().unwrap();
+            folds.push((split_direction, split_cord));
+
+        }
+    }
+
+    println!("There are {} lights", coordinates.len());
+
+    for fold in folds {
+        let line = fold.1;
+        let mut new_cords = Vec::new();
+        if fold.0 == 'x' {
+            for cord in &coordinates {
+                let mut x = cord.0;
+                let mut y = cord.1;
+
+                if x > line {
+                    let diff = x - line;
+                    x = line - diff;
+                }
+
+                new_cords.push((x,y));
+
+            }
+        } else {
+            for cord in &coordinates {
+                let mut x = cord.0;
+                let mut y = cord.1;
+
+                if y > line {
+                    let diff = y - line;
+                    y = line - diff;
+                }
+
+                new_cords.push((x,y));
+
+            }
+        }
+        coordinates = new_cords;
+        coordinates.sort_unstable();
+        coordinates.dedup();
+        println!("There are {} lights", coordinates.len());
+    }
+
+    
+
+    
+
+    let mut width = 0;
+    let mut height = 0;
+
+    for cord in &coordinates {
+        if cord.0 + 1 > width {
+            width = cord.0 + 1;
+        }
+        if cord.1 + 1 > height {
+            height = cord.1 + 1;
+        }
+    }
+
+    println!("Grid is {} high and {} wide", height, width);
+
+    for y in 0..=height {
+        for x in 0..=width {
+            let mut exists = false;
+            for cord in &coordinates {
+                if cord.0 == x && cord.1 == y {
+                    exists = true;
+                }
+            }
+            if exists {
+                print!("X");
+            } else {
+                print!(" ");
+            }
+        }
+        println!("");
+    }
+}