Add the Factorial and Power Functions Snippets in C

Author: 0xHouss

public/data/c.json

@@ -18,5 +18,42 @@
         "author": "0xHouss"
       }
     ]
+  },
+  {
+    "categoryName": "Mathematical Functions",
+    "snippets": [
+      {
+        "title": "Factorial Function",
+        "description": "Calculates the factorial of a number.",
+        "code": [
+          "int factorial(int x) {",
+          "  int y = 1;",
+          "",
+          "  for (int i = 2; i <= x; i++)",
+          "    y *= i;",
+          "",
+          "  return y;",
+          "}"
+        ],
+        "tags": ["c", "math", "factorial", "utility"],
+        "author": "0xHouss"
+      },
+      {
+        "title": "Power Function",
+        "description": "Calculates the power of a number.",
+        "code": [
+          "int power(int x, int n) {",
+          "  int y = 1;",
+          "",
+          "  for (int i = 0; i < n; i++)",
+          "    y *= x;",
+          "",
+          "  return y;",
+          "}"
+        ],
+        "tags": ["c", "math", "power", "utility"],
+        "author": "0xHouss"
+      }
+    ]
   }
 ]