c language please n=4 and integrate from X_min to X and using Reimann approximation

A)Write the following functions in C language a) float *getXsamples(int *n, float Xmin, float Xmax, float step) b) float * getGaussian(int n, flo a txm //y c) float* integrate(int n, int xl, floaty|.) r' e- 2 h) Write a main( ) to integrate : y-e-r from x =0 to x= 5 step =0.25