Update all new Tasks

2015-02-20 09:02:09 -05:00 · 2015-02-20 09:02:09 -05:00 · 91df62d461
commit 91df62d461
parent 00a190b0a6
5697 changed files with 93386 additions and 804 deletions
--- a/Task/Magic-squares-of-odd-order/Java/magic-squares-of-odd-order.java
+++ b/Task/Magic-squares-of-odd-order/Java/magic-squares-of-odd-order.java
@ -0,0 +1,47 @@
+public class MagicSquare {
+
+    public static void main(String[] args) {
+        int n = 5;
+        for (int[] row : magicSquareOdd(n)) {
+            for (int x : row)
+                System.out.format("%2s ", x);
+            System.out.println();
+        }
+        System.out.printf("\nMagic constant: %d ", (n * n + 1) * n / 2);
+    }
+
+    public static int[][] magicSquareOdd(final int base) {
+        if (base % 2 == 0 || base < 3)
+            throw new IllegalArgumentException("base must be odd and > 2");
+
+        int[][] grid = new int[base][base];
+        int r = 0, number = 0;
+        int size = base * base;
+
+        int c = base / 2;
+        while (number++ < size) {
+            grid[r][c] = number;
+            if (r == 0) {
+                if (c == base - 1) {
+                    r++;
+                } else {
+                    r = base - 1;
+                    c++;
+                }
+            } else {
+                if (c == base - 1) {
+                    r--;
+                    c = 0;
+                } else {
+                    if (grid[r - 1][c + 1] == 0) {
+                        r--;
+                        c++;
+                    } else {
+                        r++;
+                    }
+                }
+            }
+        }
+        return grid;
+    }
+}