input files are random numbers void findMostAndLeastOccurrence(occurrences, size, highestCountindex, lowestCountindex);Parameters:occurrences: array of integerssize: array sizehighestCountindex: subscript of array element with the highest occurrence count, passed by referencelowestCountindex: subscript of array element with the lowest occurrence count, passed by reference- This function find the number with the most and the number with the least occurrence in the arrayIt does not print anything (no "cout" in here, main function and printCounts function does the printing)int findTotalOccurrenceCount(occurrences, size)Parameters:occurrences: array of integerssize: array sizeFunction adds up all the numbers in the occurrences array and returns the total value- It does not print anything (no "cout" in here, main function and printCounts function does the printing)The main() function does:- Ask user to enter a file name- Open the given file and check for error. If file does not exists, display error message "File XXXXXX notfound" and exit program.- Ask user to enter input inputMaxUse an input validation loop to check that inputMax cannot be less than 1.Define and initialize the array of size inputMaxOpen the file as input fileCall the function readNumbersAndTallyOccurrences( ) to read all data and tally the occurrence counts.- Close the fileCall the function printCounts() to display the occurrence counts of all numbers from 1 up to inputMax.- Call the function findTotalOccurrenceCount() to get the total occurrence count.- Display the total occurrence count.- Call the function findMostAndLeastOccurrence() to find the number with highest and the number with thelowest occurrence count.- Display the number with the highest and the number with the lowest occurrence countHint:1. You should store the occurrence count of 1 in the first element (subscript 0) of the frequency array,occurrence count 2 in the second element of array (subscript 1).,.2. Use a simple arithmetic expression to calculate the array subscript from the number that is read from thefile only if the number is 1) to bedefined in main(). The array is passed as a parameter to other functions.5. You should use function prototypes before main()6. If there are multiple numbers with the same highest occurrence count or the same lowest occurrencecount, use only the first number. The program reads data from one of the files given here. The first line of each file can contain any string (mayhave multiple spaces) that should be read but not used. Following the string are numbers whose values areequalled to or greater than 1.There should be no assumption of how many numbers are in the file. There should be no assumption of thelargest number in the file.While reading each number from the input file, the program should keep track of (tally) the number of occurrences(frequency counts) of each number whose value is 1 up to certain value inputMax (entered by user) and programstores the frequency counts in an array of size inputMax. The program reads all numbers in a file but it does nottally the occurrence of numbers that are larger than inputMax. The frequency (occurrence count) of a number isthe count of how many times the number occurs. For example, if use input inputMax is 20, the program keepstrack of the occurrence counts for the number 1, 2, 3, 4,.20, and it ignores the numbers that are larger than 20.The program should NOT store the numbers it reads from the file because there is no need to do it and there aretoo many numbers (millions of numbers). All it needs to store are the occurrence counts of numbers from 1 toinputMax. For example, if user input inputMax is 20, then the occurrence count array size is 20.int readNumbersAndTallyOccurrences(occurrences, size, infile);Parameters:occurrences: array of integerssize: array sizeinfile: input file (ifstream object), passed by reference.The input file is opened in main function, then passed to this function.Function to read all the numbers in the input file using a loopIt keeps track of the occurrence of each number if it is 20.Function does not print anything (main function and printCounts function does the printing)Function returns the count of all numbers in the file.void printCounts(occurrences, size);Parameters:occurrences: array of integerssize: array sizePrint the values of the occurrence counts in the array using a loop

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input files are random numbers void findMostAndLeastOccurrence(occurrences, size, highestCountindex, lowestCountindex);Parameters:occurrences: array of integerssize: array sizehighestCountindex: subscript of array element with the highest occurrence count, passed by referencelowestCountindex: subscript of array element with the lowest occurrence count, passed by reference- This function find the number with the most and the number with the least occurrence in the arrayIt does not print anything (no "cout" in here, main function and printCounts function does the printing)int findTotalOccurrenceCount(occurrences, size)Parameters:occurrences: array of integerssize: array sizeFunction adds up all the numbers in the occurrences array and returns the total value- It does not print anything (no "cout" in here, main function and printCounts function does the printing)The main() function does:- Ask user to enter a file name- Open the given file and check for error. If file does not exists, display error message "File XXXXXX notfound" and exit program.- Ask user to enter input inputMaxUse an input validation loop to check that inputMax cannot be less than 1.Define and initialize the array of size inputMaxOpen the file as input fileCall the function readNumbersAndTallyOccurrences( ) to read all data and tally the occurrence counts.- Close the fileCall the function printCounts() to display the occurrence counts of all numbers from 1 up to inputMax.- Call the function findTotalOccurrenceCount() to get the total occurrence count.- Display the total occurrence count.- Call the function findMostAndLeastOccurrence() to find the number with highest and the number with thelowest occurrence count.- Display the number with the highest and the number with the lowest occurrence countHint:1. You should store the occurrence count of 1 in the first element (subscript 0) of the frequency array,occurrence count 2 in the second element of array (subscript 1).,.2. Use a simple arithmetic expression to calculate the array subscript from the number that is read from thefile only if the number is <= maxlnput. Do not use a gigantic "if" statement to get the array subscript.3. Remember the rules about array subscript range.4. There should be only ONE array of size maxlnput (number values are from 1 to certain value > 1) to bedefined in main(). The array is passed as a parameter to other functions.5. You should use function prototypes before main()6. If there are multiple numbers with the same highest occurrence count or the same lowest occurrencecount, use only the first number. The program reads data from one of the files given here. The first line of each file can contain any string (mayhave multiple spaces) that should be read but not used. Following the string are numbers whose values areequalled to or greater than 1.There should be no assumption of how many numbers are in the file. There should be no assumption of thelargest number in the file.While reading each number from the input file, the program should keep track of (tally) the number of occurrences(frequency counts) of each number whose value is 1 up to certain value inputMax (entered by user) and programstores the frequency counts in an array of size inputMax. The program reads all numbers in a file but it does nottally the occurrence of numbers that are larger than inputMax. The frequency (occurrence count) of a number isthe count of how many times the number occurs. For example, if use input inputMax is 20, the program keepstrack of the occurrence counts for the number 1, 2, 3, 4,.20, and it ignores the numbers that are larger than 20.The program should NOT store the numbers it reads from the file because there is no need to do it and there aretoo many numbers (millions of numbers). All it needs to store are the occurrence counts of numbers from 1 toinputMax. For example, if user input inputMax is 20, then the occurrence count array size is 20.int readNumbersAndTallyOccurrences(occurrences, size, infile);Parameters:occurrences: array of integerssize: array sizeinfile: input file (ifstream object), passed by reference.The input file is opened in main function, then passed to this function.Function to read all the numbers in the input file using a loopIt keeps track of the occurrence of each number if it is < or equal to size in the array parameterCode reads but do no process numbers that are greater than the size. For example, if user enters 20 asthe maxlnput, the code reads but does not use numbers that are > 20.Function does not print anything (main function and printCounts function does the printing)Function returns the count of all numbers in the file.void printCounts(occurrences, size);Parameters:occurrences: array of integerssize: array sizePrint the values of the occurrence counts in the array using a loop

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code:- #include #include #include using namespace…