[Term Entry] C++ Arrays: .crbegin()

* docs(cpp): added crbegin entry (1st draft for issue 6790)

* changed title block a bit

* changed file path

* docs(cpp): complete crbegin() entry – add syntax table, example output, codebyte

* chore: remove duplicate crbegin entry under arrays/terms

* minor fixes

* Update crbegin.md

* Minor changes

---------

Author: MRSchro

content/cpp/concepts/arrays/terms/crbegin/crbegin.md

@@ -0,0 +1,73 @@
+---
+Title: '.crbegin()'
+Description: 'Returns a const_reverse_iterator pointing to the last element of the given array.'
+Subjects:
+  - 'Computer Science'
+  - 'Developer Tools'
+Tags:
+  - 'Arrays'
+  - 'Data'
+  - 'Data Structures'
+  - 'Methods'
+CatalogContent:
+  - 'learn-c-plus-plus'
+  - 'path/computer-science'
+---
+
+In C++, the **`.crbegin()`** [method](https://www.codecademy.com/resources/docs/cpp/methods) returns a `const_reverse_iterator` referring to the last element of the given array, i.e., the first element in reverse order. Because the iterator is constant, it cannot be used to modify the underlying elements.
+
+## Syntax
+
+```pseudo
+container.crbegin()
+```
+
+**Parameters:**
+
+`.crbegin()` takes no parameters.
+
+**Return value:**
+
+Returns a `const_reverse_iterator` referring to the last element of the given array.
+
+## Example
+
+This example prints the elements of an array in reverse order using constant reverse iterators (`.crbegin()` and `.crend()`):
+
+```cpp
+#include <array>
+#include <iostream>
+
+int main() {
+  std::array<int, 5> nums = {10, 20, 30, 40, 50};
+
+  // Print the array in reverse using .crbegin() and .crend()
+  for (auto it = nums.crbegin(); it != nums.crend(); ++it) {
+    std::cout << *it << ' ';
+  }
+  std::cout << '\n';
+}
+```
+
+Here is the output:
+
+```shell
+50 40 30 20 10
+```
+
+## Codebyte Example
+
+Run this codebyte example to understand how the `.crbegin()` method works:
+
+```codebyte/cpp
+#include <array>
+#include <iostream>
+
+int main() {
+  std::array<char, 4> letters = {'A', 'B', 'C', 'D'};
+
+  // crbegin() points to the last element (index 3)
+  std::cout << "Last letter: " << *letters.crbegin() << '\n';
+  return 0;
+}
+```