Question

write these programs in c++ using getch() function

Write a program that reads 20 integers from a user using a while loop and determines and prints whether each of those integers is an even number.

Write a program that uses a while statement to read integers from a user and prints the sum, average, and largest of these numbers. The input should terminate if the user enters -1.

Answer 1

NOTE that getch() is no longer present in C++ compiler as part of conio.h. Hence, thee is no way we can use getch() to provide the code for these problems. Hence, I am using standard cin to get user input.

1)

#include <iostream>

using namespace std;

int main() {

int num;

cout << "Enter 20 integers: " << endl;

int i = 1;

while (i<=20) {

cout << "Enter " << i << " integer: ";

cin >> num;

if (num % 2 == 0) {

cout << num << " is even" << endl;

} else {

cout << num << " is odd" << endl;

}

i ++;

}

}

2)

#include <iostream>

#include <climits>

using namespace std;

int main() {

int num;

int largest = INT_MIN;

int sum = 0;

int count = 0;

while (true) {

cout << "Enter an integer: ";

cin >> num;

if (num == -1){

break;

}

count ++;

sum += num;

largest = (largest < num) ? num : largest;

}

cout << "Sum = " << sum << endl;

cout << "Average = " << (double)(sum) / (double)(count) << endl;

cout << "Largest number = " << largest;

}