Fixed Clang Format issues

Author: khalidx3

src/main/java/com/thealgorithms/backtracking/SudokuSolver.java

@@ -9,86 +9,86 @@
  */
 public final class SudokuSolver {
 
-      private SudokuSolver() {
-      } // Prevent instantiation
+    private SudokuSolver() {
+    } // Prevent instantiation
 
-      /**
-       * Solves the Sudoku puzzle using backtracking.
-       *
-       * @param sudoku 9x9 Sudoku grid, empty cells are 0
-       * @param row    current row
-       * @param col    current column
-       * @return true if solved, false otherwise
-       */
-      public static boolean sudokuSolver(int[][] sudoku, int row, int col) {
-            if (row == 9) {
-                  return true;
-            }
+    /**
+     * Solves the Sudoku puzzle using backtracking.
+     *
+     * @param sudoku 9x9 Sudoku grid, empty cells are 0
+     * @param row    current row
+     * @param col    current column
+     * @return true if solved, false otherwise
+     */
+    public static boolean sudokuSolver(int[][] sudoku, int row, int col) {
+        if (row == 9) {
+            return true;
+        }
 
-            int nextRow = row;
-            int nextCol = col + 1;
-            if (nextCol == 9) {
-                  nextRow = row + 1;
-                  nextCol = 0;
-            }
+        int nextRow = row;
+        int nextCol = col + 1;
+        if (nextCol == 9) {
+            nextRow = row + 1;
+            nextCol = 0;
+        }
 
-            if (sudoku[row][col] != 0) {
-                  return sudokuSolver(sudoku, nextRow, nextCol);
-            }
+        if (sudoku[row][col] != 0) {
+            return sudokuSolver(sudoku, nextRow, nextCol);
+        }
 
-            for (int num = 1; num <= 9; num++) {
-                  if (isSafe(sudoku, row, col, num)) {
-                        sudoku[row][col] = num;
-                        if (sudokuSolver(sudoku, nextRow, nextCol)) {
-                              return true;
-                        }
-                        sudoku[row][col] = 0; // backtrack
-                  }
+        for (int num = 1; num <= 9; num++) {
+            if (isSafe(sudoku, row, col, num)) {
+                sudoku[row][col] = num;
+                if (sudokuSolver(sudoku, nextRow, nextCol)) {
+                    return true;
+                }
+                sudoku[row][col] = 0; // backtrack
             }
+        }
 
-            return false;
-      }
+        return false;
+    }
 
-      /**
-       * Checks if placing num at (row, col) is safe.
-       *
-       * @param sudoku 9x9 Sudoku grid
-       * @param row    current row
-       * @param col    current column
-       * @param num    number to place
-       * @return true if safe, false otherwise
-       */
-      private static boolean isSafe(int[][] sudoku, int row, int col, int num) {
-            for (int i = 0; i < 9; i++) {
-                  if (sudoku[row][i] == num || sudoku[i][col] == num) {
-                        return false;
-                  }
+    /**
+     * Checks if placing num at (row, col) is safe.
+     *
+     * @param sudoku 9x9 Sudoku grid
+     * @param row    current row
+     * @param col    current column
+     * @param num    number to place
+     * @return true if safe, false otherwise
+     */
+    private static boolean isSafe(int[][] sudoku, int row, int col, int num) {
+        for (int i = 0; i < 9; i++) {
+            if (sudoku[row][i] == num || sudoku[i][col] == num) {
+                return false;
             }
+        }
 
-            int startRow = row - row % 3;
-            int startCol = col - col % 3;
-            for (int i = startRow; i < startRow + 3; i++) {
-                  for (int j = startCol; j < startCol + 3; j++) {
-                        if (sudoku[i][j] == num) {
-                              return false;
-                        }
-                  }
+        int startRow = row - row % 3;
+        int startCol = col - col % 3;
+        for (int i = startRow; i < startRow + 3; i++) {
+            for (int j = startCol; j < startCol + 3; j++) {
+                if (sudoku[i][j] == num) {
+                    return false;
+                }
             }
+        }
 
-            return true;
-      }
+        return true;
+    }
 
-      /**
-       * Prints the Sudoku grid.
-       *
-       * @param sudoku 9x9 Sudoku grid
-       */
-      public static void printSudoku(int[][] sudoku) {
-            for (int i = 0; i < 9; i++) {
-                  for (int j = 0; j < 9; j++) {
-                        System.out.print(sudoku[i][j] + " ");
-                  }
-                  System.out.println();
+    /**
+     * Prints the Sudoku grid.
+     *
+     * @param sudoku 9x9 Sudoku grid
+     */
+    public static void printSudoku(int[][] sudoku) {
+        for (int i = 0; i < 9; i++) {
+            for (int j = 0; j < 9; j++) {
+                System.out.print(sudoku[i][j] + " ");
             }
-      }
+            System.out.println();
+        }
+    }
 }