swap directories of part 1 part 2 because iw orked on part1 by accident

2024/day4/part1/src/main.rs

@@ -33,23 +33,24 @@ fn main() {
     let leny = frfrvec.clone().len();
 
     for y in 1..leny {
-        let widthup = y - 1 > 4;
-        let widthdown = (leny - y) > 4;
+        let widthup = y >= 4;
+        let widthdown = (leny - y) >= 4;
 
-        for x in 1..lenx {
+        for x in 1..lenx+1 {
             // check if enough space left and right
-            println!("x is {x}");
-            println!("y is {y}");
-            println!("width up: {}", widthup);
-            println!("width down: {}", widthdown);
-            let widthleft = x - 1 > 4;
-            println!("width left: {}", widthleft);
-            let widthright = (lenx - x) > 4;
-            println!("width right: {}", widthright);
+
+            let widthleft = x >= 4;
+
+            let widthright = (lenx - x) >= 3;
 
             // search algorithm starts here
-            // check if the char is s
+            // check if the char is X
             if frfrvec[y][x] == 'X' {
+                println!("x is {x}");
+                println!("y is {y}");
+                println!("width up: {}", widthup);
+                println!("width down: {}", widthdown);
+                println!("width left: {}", widthleft);
                 // check if going upwards
                 if widthup {
                     if frfrvec[y - 1][x] == 'M'
@@ -57,6 +58,7 @@ fn main() {
                         && frfrvec[y - 3][x] == 'S'
                     {
                         pointcounter += 1;
+                        println!("successful up");
                     }
                 }
                 // check if going diag up left
@@ -66,6 +68,7 @@ fn main() {
                         && frfrvec[y - 3][x - 3] == 'S'
                     {
                         pointcounter += 1;
+                        println!("successful up left");
                     }
                 }
                 // check if going left
@@ -75,6 +78,7 @@ fn main() {
                         && frfrvec[y][x - 3] == 'S'
                     {
                         pointcounter += 1;
+                        println!("successful left");
                     }
                 }
                 // check if going diag down left
@@ -84,6 +88,7 @@ fn main() {
                         && frfrvec[y + 3][x - 3] == 'S'
                     {
                         pointcounter += 1;
+                        println!("successful down left");
                     }
                 }
                 // check if going down
@@ -93,6 +98,7 @@ fn main() {
                         && frfrvec[y + 3][x] == 'S'
                     {
                         pointcounter += 1;
+                        println!("successful down");
                     }
                 }
                 // check if going diag down right
@@ -102,6 +108,7 @@ fn main() {
                         && frfrvec[y + 3][x + 3] == 'S'
                     {
                         pointcounter += 1;
+                        println!("successful down right");
                     }
                 }
                 // check if going right
@@ -111,6 +118,7 @@ fn main() {
                         && frfrvec[y][x + 3] == 'S'
                     {
                         pointcounter += 1;
+                        println!("successful right");
                     }
                 }
                 // check if going diag right up
@@ -120,9 +128,11 @@ fn main() {
                         && frfrvec[y - 3][x + 3] == 'S'
                     {
                         pointcounter += 1;
+                        println!("successful up right");
                     }
                 }
             }
+            println!("\n")
         }
     }
 

2024/day4/part2/Cargo.lock

@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "part1"
+version = "0.1.0"

2024/day4/part2/Cargo.toml

@@ -0,0 +1,6 @@
+[package]
+name = "part1"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]

2024/day4/part2/src/main.rs

@@ -0,0 +1,98 @@
+use std::fs::read_to_string;
+
+fn main() {
+    let mut pointcounter = 0;
+
+    let lines: Vec<String> = read_to_string("input.txt")
+        .unwrap()
+        .lines()
+        .map(String::from)
+        .collect();
+    let mut frfrvec: Vec<Vec<char>> = Vec::new();
+    println!("ye the lines are {:?}", lines);
+
+    // make y coord offset by 1
+    let lenxold = lines[1].chars().count();
+    let mut lenvec: Vec<char> = Vec::new();
+    for i in 0..lenxold {
+        lenvec.push('0');
+    }
+    frfrvec.push(lenvec);
+
+    // main section where you push stuff
+    for ministr in lines.clone() {
+        let mut pushvec = Vec::new();
+        pushvec.push('0'); // make x coord offset by 1
+        for minichar in ministr.chars() {
+            pushvec.push(minichar);
+        }
+        frfrvec.push(pushvec);
+    }
+    println!("{:?}", frfrvec);
+    let lenx = lines[1].chars().count();
+    let leny = frfrvec.clone().len();
+
+    for y in 1..leny {
+        let widthup = y >= 2;
+        let widthdown = (leny - y) >= 2;
+
+        for x in 1..lenx+1 {
+            // check if enough space left and right
+
+            let widthleft = x >= 2;
+
+            let widthright = (lenx - x) >= 1;
+
+            // search algorithm starts here
+            // check if the char is X
+            if frfrvec[y][x] == 'A' {
+                println!("x is {x}");
+                println!("y is {y}");
+                println!("width up: {}", widthup);
+                println!("width down: {}", widthdown);
+                println!("width left: {}", widthleft);
+                if widthup && widthleft && widthdown && widthright {
+                    // check if start from top
+                    if frfrvec[y - 1][x - 1] == 'M' // up left
+                        && frfrvec[y - 1][x + 1] == 'M' // up right
+                        && frfrvec[y + 1][x - 1] == 'S' // down left
+                        && frfrvec[y + 1][x + 1] == 'S' // down right
+                    {
+                        pointcounter += 1;
+                        println!("successful up");
+                    }
+                    // check if start from left
+                    if frfrvec[y - 1][x - 1] == 'M' // up left
+                        && frfrvec[y - 1][x + 1] == 'S' // up right
+                        && frfrvec[y + 1][x - 1] == 'M' // down left
+                        && frfrvec[y + 1][x + 1] == 'S' // down right
+                    {
+                        pointcounter += 1;
+                        println!("successful left");
+                    }
+                    // check if start from bottom
+                    if frfrvec[y - 1][x - 1] == 'S' // up left
+                        && frfrvec[y - 1][x + 1] == 'S' // up right
+                        && frfrvec[y + 1][x - 1] == 'M' // down left
+                        && frfrvec[y + 1][x + 1] == 'M' // down right
+                    {
+                        pointcounter += 1;
+                        println!("successful down");
+                    }
+                    // check if start from right
+                    if frfrvec[y - 1][x - 1] == 'S' // up left
+                        && frfrvec[y - 1][x + 1] == 'M' // up right
+                        && frfrvec[y + 1][x - 1] == 'S' // down left
+                        && frfrvec[y + 1][x + 1] == 'M' // down right
+                    {
+                        pointcounter += 1;
+                        println!("successful right");
+                    }
+                }
+            }
+            println!("\n")
+        }
+    }
+
+    println!("{pointcounter}");
+}