in c++ please use the format already given in the code

Implement a C++ program that calculates the left endpoint,right-endpoint, trapezoidal, midpoint, and simpson's rule approximations for a particular definite integral. The program needs to have input n from user using cin and needs to display output on screen using cout. As a test case for our numerical integration, we will approximate the definite integral of f (x)- 1/(1+x*2) on the interval (0, 1 ACTIVITY 161Ercise 1 LAB 0/3 main.cpp Load default template.. 1 #include 2 #include 3 using namespace std 5 int main) t 6 string userName; 8 cin userNome; 9 cout