refactor 36

Author: fishercoder1534

src/main/java/com/fishercoder/solutions/_36.java

@@ -1,95 +1,85 @@
 package com.fishercoder.solutions;
 
-/**
- * 36. Valid Sudoku
- *
- * Determine if a Sudoku is valid, according to: Sudoku Puzzles - The Rules.
- * The Sudoku board could be partially filled, where empty cells are filled with the character '.'.
- *
- * A partially filled sudoku which is valid.
-
- Note:
- A valid Sudoku board (partially filled) is not necessarily solvable. Only the filled cells need to be validated.*/
 public class _36 {
 
-  public static class Solution1 {
-    public boolean isValidSudoku(char[][] board) {
-      for (int i = 0; i < 9; i++) {
-        if (!isValidRowOrColumn(board, i)) {
-          return false;
-        }
-      }
+    public static class Solution1 {
+        public boolean isValidSudoku(char[][] board) {
+            for (int i = 0; i < 9; i++) {
+                if (!isValidRowOrColumn(board, i)) {
+                    return false;
+                }
+            }
 
-      for (int j = 0; j < 9; j++) {
-        if (!isValidCol(board, j)) {
-          return false;
-        }
-      }
+            for (int j = 0; j < 9; j++) {
+                if (!isValidCol(board, j)) {
+                    return false;
+                }
+            }
 
-      for (int i = 0; i < 7; i = i + 3) {
-        for (int j = 0; j < 7; j = j + 3) {
-          if (!isValidSquare(board, i, j)) {
-            return false;
-          }
+            for (int i = 0; i < 7; i = i + 3) {
+                for (int j = 0; j < 7; j = j + 3) {
+                    if (!isValidSquare(board, i, j)) {
+                        return false;
+                    }
+                }
+            }
+            return true;
         }
-      }
-      return true;
-    }
 
-    boolean isValidRowOrColumn(char[][] board, int index) {
-      int[] nums = new int[9];
-      for (int i = 0; i < 9; i++) {
-        nums[i] = 1;
-      }
-      for (int j = 0; j < 9; j++) {
-        if (board[index][j] != '.') {
-          nums[Character.getNumericValue(board[index][j]) - 1]--;
-        }
-      }
-      for (int i : nums) {
-        if (i < 0) {
-          return false;
+        boolean isValidRowOrColumn(char[][] board, int index) {
+            int[] nums = new int[9];
+            for (int i = 0; i < 9; i++) {
+                nums[i] = 1;
+            }
+            for (int j = 0; j < 9; j++) {
+                if (board[index][j] != '.') {
+                    nums[Character.getNumericValue(board[index][j]) - 1]--;
+                }
+            }
+            for (int i : nums) {
+                if (i < 0) {
+                    return false;
+                }
+            }
+            return true;
         }
-      }
-      return true;
-    }
 
-    boolean isValidCol(char[][] board, int col) {
-      int[] nums = new int[9];
-      for (int i = 0; i < 9; i++) {
-        nums[i] = 1;
-      }
-      for (int i = 0; i < 9; i++) {
-        if (board[i][col] != '.') {
-          nums[Character.getNumericValue(board[i][col]) - 1]--;
-        }
-      }
-      for (int i : nums) {
-        if (i < 0) {
-          return false;
+        boolean isValidCol(char[][] board, int col) {
+            int[] nums = new int[9];
+            for (int i = 0; i < 9; i++) {
+                nums[i] = 1;
+            }
+            for (int i = 0; i < 9; i++) {
+                if (board[i][col] != '.') {
+                    nums[Character.getNumericValue(board[i][col]) - 1]--;
+                }
+            }
+            for (int i : nums) {
+                if (i < 0) {
+                    return false;
+                }
+            }
+            return true;
         }
-      }
-      return true;
-    }
 
-    boolean isValidSquare(char[][] board, int row, int col) {
-      int[] nums = new int[9];
-      for (int i = 0; i < 9; i++) {
-        nums[i] = 1;
-      }
-      for (int i = row; i < row + 3; i++) {
-        for (int j = col; j < col + 3; j++) {
-          if (board[i][j] != '.') {
-            nums[Character.getNumericValue(board[i][j]) - 1]--;
-          }
-        }
-      }
-      for (int i : nums) {
-        if (i < 0) {
-          return false;
+        boolean isValidSquare(char[][] board, int row, int col) {
+            int[] nums = new int[9];
+            for (int i = 0; i < 9; i++) {
+                nums[i] = 1;
+            }
+            for (int i = row; i < row + 3; i++) {
+                for (int j = col; j < col + 3; j++) {
+                    if (board[i][j] != '.') {
+                        nums[Character.getNumericValue(board[i][j]) - 1]--;
+                    }
+                }
+            }
+            for (int i : nums) {
+                if (i < 0) {
+                    return false;
+                }
+            }
+            return true;
         }
-      }
-      return true;
     }
-  }
 }