Write a computer program to solve the pipe network below. All pipe lengths and diameters are indicated. Assume f = 0.02 and neglect all minor losses. A head of 40m is given at point A. Determine the discharges in all pipes and the EGL at all nodes. Keep printed evidence of your program. Once your model works, recalculate the conditions for the following two cases: (1) replace the outflow at D with an outflow of 0.5 m^3/s at both B and F: and (2) based on the initial condition sketched below, if you increase the diameter of a single pipe to 250 mm, which pipe would give the maximum head at point F