day10 & day11

7 files changed, 604 insertions, 4 deletions

diff --git a/input/day10.txt b/input/day10.txt
new file mode 100644
index 0000000..78c4775
--- /dev/null
+++ b/input/day10.txt
@@ -0,0 +1,140 @@
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+LJ-FLJFJJ.FJJ7.--F.LJJJL|L|-F7|.J|.|LLJJ.F-LJ-|.LLFJ|F7L|L7-7.F|7F|7L||-FJ.-7JLJJLJL7JL..L7|L-7F-.J-FL-FL.|LL-FFJFJL7.---J||F7.|||FJJ..F-J||
+|JFLL-L7LLJ77.FJ..7||J..|7.FJ7-7L-7L77|F7JFL---||.L.JF-JJJ|LF7.|F7JLFJLF|FJFF7.|LF7|LJ|--7LL--J-|7||L|-JLFF77FLJF|-7JFL7L7J||LJ-L77FJFFJJFJ7
+|.J|FLL7||LLL---J7LL7-7-7-FJ7J.FJ||.LL7FL7L7.F|.7FL77|LJ7-J-F-L7-J7.7.FF.|J|L|.7|L7JF7-7L|FJ|7L7LLJJ7L7.7LJJ7J|-F.7L77LL--7F|-|.-J--.F-..F7.
+L7FL-F-7J|L-|JJ|FL|JJLF-|JLJ|.F|LL..JL|-|-|7-J77J|J|FJ||L-|-|.JJ7.|7L-FJ-7--.L|||7JLF|LF7LJLFJL|7JF.|L7-F--F-J.FL7L7JJ.L-.7JLLJ|.-J-|J-J7LJ-
+|L7FLJ-J-JJJLJ.F7JL|-7|.|.FL-7-J7|.FF|LFLF|JF7|LFJ--F|-FJJJJFJL77-L|J.|J|LJJLFF-L7.F-||.J77.JJJ|L-7-7.|LFJ.||L-7J.FJJFJF|.|L7J.FFJ..LLLJL.|J
+7-||7J|L7.FJLJFF-7.F7FF-7-F-.J.|LJFLL7LF7|J..LJLJ|.|F|7|FLF-||L|77-L-7.FJ|.7.7JJL|7L7-FF-7-L-JF-7|LJ|JJF7-L--7|J-||L7LFF7F|-L7F-J.F7.|.LFFJ7
+L7JJF-7L|-LFJ.L7J|J-|.JL7.F.-J-7LL|J-|-|-J-F.L-7-L|--.LJ-FJ-JJ.LLL.LLF|LL77.JJ.L-|JJLJLJ-F7J..L-LJJL7J-J..|-L--J-J-L7--JFL7-JF|-F77-FLJL-JLJ
diff --git a/input/day11.txt b/input/day11.txt
new file mode 100644
index 0000000..d62ae5a
--- /dev/null
+++ b/input/day11.txt
@@ -0,0 +1,140 @@
+.........................#...........................................................................................................#......
+..................#................................................#........................#................#..............................
+...........................................................................#........................#...........................#...........
+........#...................#........#......#.............#.....................#...........................................................
+..........................................................................................................#........#........................
+.....................#..........................#..........................................................................#................
+.#...........#................................................................................................#....................#......#.
+...............................#..........................................#..........#......................................................
+....................................#............................#...................................#......................................
+.................#.......................................................................................................#..................
+.........................#.....................#.......................#........#.....................................................#.....
+.....#...............................................#......................................#...............................................
+..............................#..................................................................#.............#............................
+#....................................#..................................................................#...................................
+..........................................................#.................................................................................
+......................................................................#...........................................#.........................
+............#...............................................................#............................................#.............#....
+....#.........................................................................................................................#.............
+...................................#.....#.................................................................................................#
+................................................#........................#.........#..........................#.............................
+..........................#....................................#................................#...........................................
+......#..............#...........................................................................................................#..........
+.................................#.......................#............................#................#....................................
+..................................................#..................#.....#................................................................
+............#..............................#.................................................#............................#.................
+..................#...............................................................#........................#.....#....................#.....
+.....#......................................................................................................................................
+..............................................#............#.........................................#...............#......................
+..................................................................#.........................................................................
+............................#..............................................................................................#.............#..
+......................#..........................................................................................................#..........
+.......................................................................................#....................................................
+.............................................#...............................#.............................#..........................#.....
+.#................#.........................................................................................................................
+................................#...................................................#..........................#............................
+..........#..............#........................................#................................#.....................................#..
+...............................................#.......#..................................#.................................................
+............................................................#...................................................................#...........
+....................#.....................#................................................................................#................
+............................#.....................#............................................#............................................
+.............#................................................................................................#.............................
+.................................................................#......................#...............#...................................
+.......................................................................#.........#..................................#.......................
+......#.......................#........................#....................................................................................
+...................#..................................................................................................................#.....
+......................................#..............................................................#...................#..................
+.#............................................#................#.............#.................#................#.............#.............
+............................................................................................................................................
+..................................................................................#..................................#......................
+.......#..............#............................................#......#...............................#.............................#...
+..................................#..............#..........................................................................................
+..............#..........................................#..................................................................................
+...............................................................#................................................#.................#.........
+.........................#...................................................#.........................................#....................
+............................................................................................................................................
+...#..............#................................................................................#.......................#................
+.....................................................#.................................#......#.............................................
+.................................#.......................................#......#..................................#........................
+............................................................................................................................................
+............................................................................................................................................
+....................................#............#...........................#.........................#....................#...............
+......#................#.........................................................................#.........................................#
+........................................#..................#................................................................................
+.................#......................................................................#....................#.....#.................#......
+.....................................................................................................#......................................
+.#.......................................................................................................................#...............#..
+..............................#.................#...........................................................................................
+.......#...............#...................#.........................................#.....................#.....#..........................
+...................................#...........................................................#............................................
+..................#................................................#............#...........................................#......#........
+............................................................................................................................................
+.......................................................................................................................#....................
+.............................#.....................#...........................................................#...........................#
+...............#....................#.............................................................#.........................................
+.....#..............#..................................................................................#....................................
+#..............................................#...........................#................................................#...........#...
+..................................................................#.............#..........#.......................................#........
+............................................................................................................................................
+.........#......#..........#........................#............................................................#..........................
+........................................................................................#..........#........................................
+........................................#...................#........#....................................#............#....................
+..............................#..................................................#..........................................................
+............................................#.........................................................#.....................................
+.....#........#...........#..........................................................#......................................#...............
+................................................#........................#.................................................................#
+.....................................#.....................#..................................................#.................#.....#.....
+.#.......#.........................................................#................................#.......................................
+............................................................................................................................................
+...............................#...........#................................................................................................
+.................................................................................................#..........#.....#.........................
+......#...........#........#.......................#..............................#.................................................#.......
+.........................................................................#..................................................................
+...........#..................................#........................................................................#.....#..............
+.......................................#......................................................................#.............................
+#.....................#.........................................................................#........................................#..
+.................................................................................#...................#......................................
+.................................................#..............#...........#......................................................#........
+................#............#.....#........................................................................................................
+.....#......................................#...............................................................................................
+.......................................................#.....#.........................#.........#...................#......................
+................................#....................................................................................................#......
+.....................#.........................................................................................#............................
+............#.......................................#...............#..........#....................#.......................................
+.........................................................................................#..................................................
+................................................#..............................................#.......................................#....
+...#......................#...............................................................................................#......#..........
+...........................................................#.................#.......#......................................................
+..........................................................................................................#...........#.....................
+......................................#........................#.....#.......................#................................#......#......
+...................#..............................................................................#.........................................
+.#..........................................................................................................................................
+.......................#......#...........................................#.........#...........................#..........#................
+.............#...................................#....................................................#...................................#.
+...................................#........#...............................................................................................
+................................................................................................#...................#.......................
+.................................................................................................................................#..........
+.....................#......................................#................#.......#......................................................
+#......#..................#..............................................................................#..............#...................
+...........................................#.....................................................................#..........................
+.............#......................#...........#......................................................................................#....
+...................#.....................................#............#.....................................................................
+.......................................................................................#.........#.....#.............#......................
+...........................................................................#....................................................#...........
+..................................#.............................#..............................................#............................
+...............#..........#......................#..................................#.......................................#...............
+........................................#...................................................................................................
+...........................................................................................#............#...................................
+.............................#...............................................#........................................................#.....
+.............#................................#......#.........#......#............................#............#...........................
+...#.....................................................................................................................#..................
+.........................................................#...........................#.....................................................#
+........#........................................#..................................................................#..............#........
+#..........................#......#.....#................................................#..................................................
+............................................................................................................................................
+....................................................#........#.................................#.......................#....................
+.................#..........................................................................................................................
+.......................#....................#........................#.....................#...........#..........#.........................
+.....#..............................#.......................................................................#................#............#.
+..........................................................#...............#.................................................................
+...........#.......#.....................#...........#.........#.................#.................#........................................
diff --git a/src/day10pt1.rs b/src/day10pt1.rs
new file mode 100644
index 0000000..52db522
--- /dev/null
+++ b/src/day10pt1.rs
@@ -0,0 +1,81 @@
+fn mogu_levo(c: char) -> bool {
+    return c == 'S' || c == 'L' || c == 'F' || c == '-';
+}
+
+fn mogu_desno(c: char) -> bool {
+    return c == 'S' || c == '7' || c == 'J' || c == '-';
+}
+
+fn mogu_gore(c: char) -> bool {
+    return c == 'S' || c == '7' || c == 'F' || c == '|';
+}
+
+fn mogu_dole(c: char) -> bool {
+    return c == 'S' || c == 'L' || c == 'J' || c == '|';
+}
+
+fn bfs(input: &Vec<&str>, was: &mut Vec<Vec<bool>>, x: i32, y: i32, s: u32) -> u32 {
+    if s > 2 && input[y as usize].chars().nth(x as usize).unwrap() == 'S' {
+        return s;
+    }
+
+    if was[y as usize][x as usize] {
+        return 0;
+    }
+
+    was[y as usize][x as usize] = true;
+
+    for (dx, dy) in [(-1, 0), (1, 0), (0, -1), (0, 1)] {
+        let nx = x + dx;
+        let ny = y + dy;
+        if nx >= 0 && nx < input[y as usize].len() as i32 && ny >= 0 && ny < input.len() as i32 {
+            let t = input[y as usize].chars().nth(x as usize).unwrap();
+            let n = input[ny as usize].chars().nth(nx as usize).unwrap();
+
+            let ind: bool;
+            if dx == 1 {
+                ind = mogu_levo(t) && mogu_desno(n);
+            } else if dx == -1 {
+                ind = mogu_desno(t) && mogu_levo(n);
+            } else if dy == 1 {
+                ind = mogu_gore(t) && mogu_dole(n);
+            } else {
+                ind = mogu_dole(t) && mogu_gore(n);
+            }
+
+            if !ind {
+                continue;
+            }
+
+            let ret = bfs(input, was, nx, ny, s + 1);
+            if ret != 0 {
+                return ret;
+            }
+        }
+    }
+    return 0;
+}
+
+pub fn main() {
+    let txt = std::fs::read_to_string("./input/day10.txt").unwrap();
+    let mut input: Vec<_> = vec![];
+    for line in txt.lines() {
+        input.push(line);
+    }
+
+    let mut x = 0;
+    let mut y = 0;
+
+    for i in 0..input.len() {
+        for j in 0..input[i].len() {
+            if input[i].chars().nth(j).unwrap() == 'S' {
+                x = j as i32;
+                y = i as i32;
+            }
+        }
+    }
+
+    let mut was = vec![vec![false; input[0].len()]; input.len()];
+
+    println!("{}", (bfs(&input, &mut was, x, y, 0) + 1) / 2);
+}
diff --git a/src/day10pt2.rs b/src/day10pt2.rs
new file mode 100644
index 0000000..c05402f
--- /dev/null
+++ b/src/day10pt2.rs
@@ -0,0 +1,149 @@
+fn mogu_levo(c: char) -> bool {
+    return c == 'S' || c == 'L' || c == 'F' || c == '-';
+}
+
+fn mogu_desno(c: char) -> bool {
+    return c == 'S' || c == '7' || c == 'J' || c == '-';
+}
+
+fn mogu_gore(c: char) -> bool {
+    return c == 'S' || c == '7' || c == 'F' || c == '|';
+}
+
+fn mogu_dole(c: char) -> bool {
+    return c == 'S' || c == 'L' || c == 'J' || c == '|';
+}
+
+fn bfs(input: &Vec<String>, was: &mut Vec<Vec<bool>>, x: i32, y: i32, s: u32) -> u32 {
+    if s > 2 && input[y as usize].chars().nth(x as usize).unwrap() == 'S' {
+        return s;
+    }
+
+    if was[y as usize][x as usize] {
+        return 0;
+    }
+
+    was[y as usize][x as usize] = true;
+
+    for (dx, dy) in [(-1, 0), (1, 0), (0, -1), (0, 1)] {
+        let nx = x + dx;
+        let ny = y + dy;
+        if nx >= 0 && nx < input[y as usize].len() as i32 && ny >= 0 && ny < input.len() as i32 {
+            let t = input[y as usize].chars().nth(x as usize).unwrap();
+            let n = input[ny as usize].chars().nth(nx as usize).unwrap();
+
+            let ind: bool;
+            if dx == 1 {
+                ind = mogu_levo(t) && mogu_desno(n);
+            } else if dx == -1 {
+                ind = mogu_desno(t) && mogu_levo(n);
+            } else if dy == 1 {
+                ind = mogu_gore(t) && mogu_dole(n);
+            } else {
+                ind = mogu_dole(t) && mogu_gore(n);
+            }
+
+            if !ind {
+                continue;
+            }
+
+            let ret = bfs(input, was, nx, ny, s + 1);
+            //            was[ny as usize][nx as usize] = false;
+
+            if ret != 0 {
+                return ret;
+            }
+        }
+    }
+    return 0;
+}
+
+fn set_s(input: &mut Vec<String>, xs: i32, ys: i32) {
+    let levi = mogu_levo(input[ys as usize].chars().nth(xs as usize - 1).unwrap());
+    let gornji = mogu_gore(input[ys as usize - 1].chars().nth(xs as usize).unwrap());
+    let donji = mogu_dole(input[ys as usize + 1].chars().nth(xs as usize).unwrap());
+    let desni = mogu_desno(input[ys as usize].chars().nth(xs as usize + 1).unwrap());
+
+    if donji && gornji {
+        input[ys as usize] = input[ys as usize].replace("S", "|");
+    } else if donji && levi {
+        input[ys as usize] = input[ys as usize].replace("S", "7");
+    } else if donji && desni {
+        input[ys as usize] = input[ys as usize].replace("S", "F");
+    } else if gornji && levi {
+        input[ys as usize] = input[ys as usize].replace("S", "J");
+    } else if gornji && desni {
+        input[ys as usize] = input[ys as usize].replace("S", "L");
+    } else if levi && desni {
+        input[ys as usize] = input[ys as usize].replace("S", "-");
+    } else {
+        panic!();
+    }
+}
+
+fn part2(input: &Vec<String>, was: Vec<Vec<bool>>) -> u32 {
+    let mut s: u32 = 0;
+    let mut en: bool;
+    let mut lc: char;
+
+    for i in 0..input.len() {
+        en = false;
+        lc = 'S';
+
+        for j in 0..input[i].len() {
+            let c = input[i].chars().nth(j).unwrap();
+
+            if !was[i][j] {
+                s += en as u32;
+                continue;
+            }
+
+            if c == '-' {
+                continue;
+            } else if c == '|' {
+                en = !en;
+                continue;
+            }
+
+            if lc == 'S' {
+                lc = c;
+                if lc == 'J' || lc == '7' {
+                    panic!();
+                }
+            } else {
+                if (lc == 'F' && c == 'J') || (lc == 'L' && c == '7') {
+                    en = !en;
+                }
+                lc = 'S';
+            }
+        }
+    }
+
+    return s;
+}
+
+pub fn main() {
+    let txt = std::fs::read_to_string("./input/day10.txt").unwrap();
+    let mut input: Vec<_> = vec![];
+    for line in txt.lines() {
+        input.push(line.to_string());
+    }
+
+    let mut xs = 0;
+    let mut ys = 0;
+
+    for i in 0..input.len() {
+        for j in 0..input[i].len() {
+            if input[i].chars().nth(j).unwrap() == 'S' {
+                xs = j as i32;
+                ys = i as i32;
+            }
+        }
+    }
+
+    let mut was = vec![vec![false; input[0].len()]; input.len()];
+    bfs(&input, &mut was, xs, ys, 0);
+    set_s(&mut input, xs, ys);
+
+    println!("{}", part2(&input, was));
+}
diff --git a/src/day11pt1.rs b/src/day11pt1.rs
new file mode 100644
index 0000000..5f1eb67
--- /dev/null
+++ b/src/day11pt1.rs
@@ -0,0 +1,45 @@
+pub fn main() {
+    let txt = std::fs::read_to_string("./input/day11.txt").unwrap();
+    let input = txt
+        .lines()
+        .map(|s| s.chars().collect::<Vec<char>>())
+        .collect::<Vec<_>>();
+
+    let mut coords = vec![];
+
+    let mut off_y = 0;
+    for i in 0..input.len() {
+        if !input[i].contains(&'#') {
+            off_y += 1;
+            continue;
+        }
+
+        let mut off_x = 0;
+        for j in 0..input[i].len() {
+            if !input
+                .clone()
+                .into_iter()
+                .map(|s| s[j])
+                .collect::<Vec<char>>()
+                .contains(&'#')
+            {
+                off_x += 1;
+                continue;
+            }
+
+            if input[i][j] == '#' {
+                coords.push(((j + off_x) as isize, (i + off_y) as isize));
+            }
+        }
+    }
+
+    let mut sum: u64 = 0;
+    for coord1 in &coords {
+        for coord2 in &coords {
+            if coord1 != coord2 {
+                sum += ((coord1.0 - coord2.0).abs() + (coord1.1 - coord2.1).abs()) as u64;
+            }
+        }
+    }
+    println!("{}", sum / 2);
+}
diff --git a/src/day11pt2.rs b/src/day11pt2.rs
new file mode 100644
index 0000000..87d80b7
--- /dev/null
+++ b/src/day11pt2.rs
@@ -0,0 +1,45 @@
+pub fn main() {
+    let txt = std::fs::read_to_string("./input/day11.txt").unwrap();
+    let input = txt
+        .lines()
+        .map(|s| s.chars().collect::<Vec<char>>())
+        .collect::<Vec<_>>();
+
+    let mut coords = vec![];
+
+    let mut off_y = 0;
+    for i in 0..input.len() {
+        if !input[i].contains(&'#') {
+            off_y += 1000000 - 1;
+            continue;
+        }
+
+        let mut off_x = 0;
+        for j in 0..input[i].len() {
+            if !input
+                .clone()
+                .into_iter()
+                .map(|s| s[j])
+                .collect::<Vec<char>>()
+                .contains(&'#')
+            {
+                off_x += 1000000 - 1;
+                continue;
+            }
+
+            if input[i][j] == '#' {
+                coords.push(((j + off_x) as isize, (i + off_y) as isize));
+            }
+        }
+    }
+
+    let mut sum: u64 = 0;
+    for coord1 in &coords {
+        for coord2 in &coords {
+            if coord1 != coord2 {
+                sum += ((coord1.0 - coord2.0).abs() + (coord1.1 - coord2.1).abs()) as u64;
+            }
+        }
+    }
+    println!("{}", sum / 2);
+}
diff --git a/src/main.rs b/src/main.rs
index 3f23276..11d3ec1 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,7 +1,7 @@
-mod day9pt1;
-mod day9pt2;
+mod day11pt1;
+mod day11pt2;
 
 fn main() {
-    day9pt1::main();
-    day9pt2::main();
+    day11pt1::main();
+    day11pt2::main();
 }