Please include full code in C++, and separate triangle.txt file, and a screenshot of the output.

20 Points Please write a program that uses to receive an integer parameter from the user, and uses the file stream to create a file "triangle.txt". The content in "triangle.txt" should be a triangle in the following form (in this case, the value of is 4). At the end of your code, please add a statement to display the date, your name, or the name of all group members if you use group submission. Run your code with the parameter value and save the screenshots of the console. Please upload your code, screenshots, and the file "triangle.txt" here