(C PROGRAMMING ONLY) DO NOT EDIT THE MAIN 7. Special Exchanging Giftsby CodeChum Admin It's Christmas time and we're having this exchanging gifts activity!   I want to surprise the receiver of my gift. After he/she receives my gift, I will add an additional P100 bill!   Instructions: In the code editor, you are provided with a main() function that asks the user for 2 integers. Then, a function call to a function named, exchangeGift() is made and the addresses of the 2 integers are passed.This exchangeGift() function hasn't been implemented yet so this is your task. This has the following description:Return type - voidName - exchangeGiftParameters - 2 addresses of 2 integersDescription - swaps the value of the 2 integers and then adds 100 to the 2nd integer (or 2nd parameter)DO NOT EDIT THE MAINInput 1. First integer 2. Second integer Output Enter integer 1: 10Enter integer 2: 2020 110

(C PROGRAMMING ONLY) 7. Comparing Charactersby CodeChum Admin Most, if not all things have numeric values. That goes for characters too. In order to find out which character has a higher value, we have to compare them with each other and display the value of the higher character.   Instructions: In the code editor, you are provided with a main() function that asks the user for 2 characters, passes these characters to a function call of the getHigherValue() function, and then prints out the ASCII value of the higher character.Your task is to implement the getHigherValue function which has the following details:Return type - intName - getHigherValueParameters - 2 characters to be comparedDescription - the ASCII value of the higher character.Hint: Comparing characters in C is just like comparing integers.DO NOT EDIT ANYTHING IN THE MAINInput 1. First character 2. Second character Output Enter first character: aEnter second character: hResult value = 104

(Wattan Corporation) is an Internet service provider that charges customers a flat rate of $7.99 for up to 10 hours of connection time. Additional hours or partial hours are charged at $1.99 each.Write a function charges that computes the total charge for a customer based on the number of hours of connection time used in a month. The function should also calculate the average cost per hour of the time used (rounded to the nearest 0.01), so use two output parameters to send back these results.You should write a second functionround_money that takes a real number as an input argument and returns as the function value the number rounded to two decimal places. Write a main function that takes data from an input file usage.txt and produces an output file charges.txt. The data file format is as follows:Line 1: current month and year as two integersOther lines: customer number (a five-digit number) and number of hours usedHere is a sample data file and the corresponding output file:Data file…