Computers And Technology College

1-(50 points) The function sum_n_avgcomputes the sum and the average of three input arguments and relays its results through two output parameters.a)Write a prototype for a function sum_n_avgthat accepts three double-type inputparameters and returns two output parameters through reference.b)Write the function definition for function sum_n_avg. The function definition is where the actual computations are performed.c)Write a function call in main ()forsum_n_avg. The function call can look like below free

Answers

Answer 1

Answer:

The program in C++ is as follows:

#include <iostream>

using namespace std;

double *sum_n_avg(double n1, double n2, double n3);

int main () {

double n1, n2, n3;

cout<<"Enter 3 inputs: ";

cin>>n1>>n2>>n3;

double *p;

p = sum_n_avg(n1,n2,n3);

cout<<"Sum: "<<*(p + 0) << endl;

cout<<"Average: "<<*(p + 1) << endl;

return 0;

}

double *sum_n_avg(double n1, double n2, double n3) {

static double arr[2];

arr[0] = n1 + n2 + n3;

arr[1] = arr[0]/3;

return arr;

}

Explanation:

This defines the function prototype

double *sum_n_avg(double n1, double n2, double n3);

The main begins here

int main () {

This declares variables for input

double n1, n2, n3;

This prompts the user for 3 inputs

cout<<"Enter 3 inputs: ";

This gets user inputs

cin>>n1>>n2>>n3;

This declares a pointer to get the returned values from the function

double *p;

This passes n1, n2 and n3 to the function and gets the sum and average, in return.

p = sum_n_avg(n1,n2,n3);

Print sum and average

cout<<"Sum: "<<*(p + 0) << endl;

cout<<"Average: "<<*(p + 1) << endl;

return 0;

}

The function begins here

double *sum_n_avg(double n1, double n2, double n3) {

Declare a static array

static double arr[2];

Calculate sum

arr[0] = n1 + n2 + n3;

Calculate average

arr[1] = arr[0]/3;

Return the array to main

return arr;

}

Related Questions

Write a Python code that takes two sequences CATCGTCCT and CACCGACCG and prints the point mutations found when aligning the two sequences. Tip: you simply need to write a for loop to go over the length of the sequences, pick a letter from each position,and, compare the two sequences position by position for matches and report the mismatches.

Answers

Answer:

Following are the code to the given question:

def match_sequence(s1,s2):#Defining a method match_sequence that accepts two parameters

for l in range(len(s1)):#defining a loop that checks range of s1 value

if(s1[l] != s2[l]): # use if block to match each sequences

print('The sequence does not match at index: ',l+1)#print value with message

s1 = 'CATCGTCCT'#defining a string varible s1

s2 = 'CACCGACCG'#defining a string varible s1

match_sequence(s1,s2)#calling a method that prints its values

Output:

The sequence does not match at index: 3

The sequence does not match at index: 6

The sequence does not match at index: 9

Explanation:

In this code, a method "match_sequence" is declared that takes two string variable "s1 and s2" in its parameters, and inside the method, a loop is declared that checks the range of s1 value and use if block to match each sequence and use a print method that prints it values.

Outside the method, two string variables are declared that holds a string value that passes into the "match_sequence" method and calls it.

What is output? public class MathRecursive { public static void myMathFunction(int a, int r, int counter) { int val; val = a*r; System.out.print(val+" "); if (counter > 4) { System.out.print("End"); } else { myMathFunction(val, r, counter + 1); } } public static void main (String [] args) { int mainNum1 = 1; int mainNum2 = 2; int ctr = 0; myMathFunction(mainNum1, mainNum2, ctr); } }
a) 2 4 8 16 32 End
b) 2 2 2 2 2
c) 2 4 8 16 32 64 End
d) 2 4 8 16 32

Answers

Answer:

The output of the program is:

2 4 8 16 32 64 End

Explanation:

See attachment for proper presentation of the program

The program uses recursion to determine its operations and outputs.

The function is defined as: myMathFunction(int a, int r, int counter)

It initially gets the following as its input from the main method

a= 1; r = 2; counter = 0

Its operation goes thus:

val = a*r; 1 * 2 = 2

Print val; Prints 2

if (counter > 4) { System.out.print("End"); } : Not true