Add spiral_matrix implementation

Author: SubhadipD9

data_structures/arrays/spiral_matrix.py

@@ -0,0 +1,48 @@
+class Solution:
+    def generateMatrix(self, n: int) -> list[list[int]]:
+        result = [[0] * n for _ in range(n)]
+        value = 1
+        
+        colStart, colEnd = 0, n - 1
+        rowStart, rowEnd = 0, n - 1
+
+        while colStart <= colEnd and rowStart <= rowEnd:
+            # Left to Right
+            for i in range(colStart, colEnd + 1):
+                result[rowStart][i] = value
+                value += 1
+            rowStart += 1
+            
+            # Up to Down
+            for j in range(rowStart, rowEnd + 1):
+                result[j][colEnd] = value
+                value += 1
+            colEnd -= 1
+            
+            # Right to Left
+            if rowStart <= rowEnd:
+                for k in range(colEnd, colStart - 1, -1):
+                    result[rowEnd][k] = value
+                    value += 1
+                rowEnd -= 1
+            
+            # Down to Up
+            if colStart <= colEnd:
+                for l in range(rowEnd, rowStart - 1, -1):
+                    result[l][colStart] = value
+                    value += 1
+                colStart += 1
+
+        return result
+
+
+# Test
+solution = Solution()
+
+n = 3
+
+matrix = solution.generateMatrix(n)
+
+# Print the matrix
+for row in matrix:
+    print(row)