Solved day14 part 1

Author: Gentleman1983

build.gradle

@@ -4,7 +4,7 @@ plugins {
 
 // project meta data
 group 'de.havox_design.aoc2023'
-version '0.13.1'
+version '0.13.2'
 
 // Switch to gradle "all" distribution.
 wrapper {

day14/src/main/kotlin/de/havox_design/aoc2023/day14/Day14.kt

@@ -2,7 +2,10 @@ package de.havox_design.aoc2023.day14
 
 class Day14(private var filename: String) {
     fun solvePart1(): Long =
-        136L
+        Matrix(getResourceAsText(filename))
+            .rollNorth()
+            .northLoad()
+            .toLong()
 
     fun solvePart2(): Long =
         0L

day14/src/main/kotlin/de/havox_design/aoc2023/day14/Matrix.kt

@@ -0,0 +1,56 @@
+package de.havox_design.aoc2023.day14
+
+data class Matrix(val matrix: MutableList<CharArray>) {
+    private val ICON_ROUND_STONE = 'O'
+    private val ICON_SQUARE_STONE = '#'
+
+    fun rollNorth(): Matrix =
+        apply {
+            matrix
+                .first()
+                .indices
+                .forEach { columnIndex ->
+
+                    matrix
+                        .indices
+                        .joinToString("") { rowIndex ->
+                            matrix[rowIndex][columnIndex].toString()
+                        }
+                        .split(ICON_SQUARE_STONE)
+                        .joinToString(ICON_SQUARE_STONE.toString()) {
+                            it
+                                .toCharArray()
+                                .sortedDescending()
+                                .joinToString("")
+                        }
+
+                        .forEachIndexed { rowIndex, c ->
+                            matrix[rowIndex][columnIndex] = c
+                        }
+                }
+        }
+
+    fun northLoad(): Int =
+        matrix
+            .first()
+            .indices
+            .sumOf { columnIndex ->
+                matrix.indices
+                    .sumOf { rowIndex ->
+                        when (ICON_ROUND_STONE) {
+                            matrix[rowIndex][columnIndex] -> matrix.size - rowIndex
+                            else -> 0
+                        }
+                    }
+            }
+
+    override fun toString(): String =
+        matrix
+            .joinToString("\n") { line -> line.joinToString("") }
+}
+
+fun Matrix(input: List<String>): Matrix =
+    input
+        .map(String::toCharArray)
+        .toMutableList()
+        .let(::Matrix)