Write a C++ or a python code to solve the following initial value problem ordinary differential equation using Euler method over the interval (o 10) with 10 time steps. Please make plots using excel or MATLAB for the output y vs time) A) y'= -y -y?: y(0)=1 If that exact solution was y(t) = 1/(-1. 2eWhat is the absolute error at y(10). (5 points) B) The following two equations represent the toggle switch genetic network. (5 points) du/dt = a1/(1+ v) - u dv/dt = a2/(1+u) - where; u(0) = 0; v(0) = 0;a1 -2, a2 -4,3-2,-2 1=2, 2= 4, B = 2, y = 2