Write the definition of a function named sumArray that receives two parameters: an array of ints and an int that contains the number of elements of the array. The function returns the sum of the elements of the array as an int.(a) add is a function that accepts two int parameters and returns their sum. Two int variables, euroSales and asiaSales, have already been declared and initialized. Another int variable, eurasiaSales, has already been declared. Write a statement that calls add to compute the sum of euroSales and asiaSales and store this value in eurasiaSales.(b) toThePowerOf is a function that accepts two int parameters and returns the value of the first parameter raised to the power of the second. An int variable cubeSide has already been declared and initialized. Another int variable, cubeVolume, has already been declared. Write a statement that calls toThePowerOf to compute the value of cubeSide raised to the power of 3, and store this value in cubeVolume.(c) max is a function that accepts two int parameters and returns the value of the larger one. Two int variables, population1 and population2, have already been declared and initialized. Write an expression (not a statement!) whose value is the larger of population1 and population2 by calling max.(d) Write the definition of a function twice, which receives an integer parameters and returns an integer that is twice the value of the parameter.