Program In C Write a program to: Read Test 1 and Test 2 marks and store in array test1 and array test2 where each array stores 5 elements. Total up marks from test1 and test2 arrays and store in array named total. Print the total marks from array total. Use pointers to access array members.

Written in code C and with clear and concise comments Extend your addition, subtraction, multiplication and division program to now present the user with an option to display only one of the results or to display them all, as demonstrated in Figure 2.3. Your program should accept two numbers from the user and carry out all four mathematical operations as before. The results will then be stored in an array and the user will be asked which operation they actually prefer to see displayed on the screen. When the option has been selected, the corresponding mathematical operation should be displayed using printfembedded in various if else statements. Since there are five different cases (display results for +, -, *, / and all of these) you should include five consecutive if (else if) statements, one for each option. In fact, you should also notify the user in case a non-valid option entry is typed, i.e. a number that is not within 1 – 4.This should be the final else statement.Your program…

3. Pointers – Arrays: initializing content • Using the pointer ptrArray, you now want to write values in those integers. Use a loop to go through each element in that array, and initialize them all to 42. This is done in the main. 4. Pointers – Arrays: printing • Write a function that will print the elements in the array-pointer. The function should accept a pointer to an integer, and the size of this array. The function should not return anything. Here is your function prototype: void printArray(int* ptr, int nb); • Your function needs to use a loop to go through all the elements in the array, and simply prints them on a new line. • In the main function, call this function with your pointer ptrArray and the size given by the user.

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