Final answer:
To find the average of 20 input numbers in C++, create a variable to store the sum, use a loop to prompt the user for the numbers, calculate the average, and print it out.
Step-by-step explanation:
To write a C++ algorithm for finding the average of 20 input numbers entered by the user, you can follow these steps: Create a variable to store the sum of the numbers. Using a loop, prompt the user to enter a number 20 times. Inside the loop, add each entered number to the sum. After the loop, calculate the average by dividing the sum by 20. Print the average on the console. Here's an example code: #include <iostream> using namespace std; int main() {
double sum = 0; double number; for (int i = 0; i < 20; i++) { cout << "Enter number " << (i + 1) << ": "; cin >> number; sum += number;} double average = sum / 20; cout << "Average: " << average << endl; return 0; } C++ Algorithm to Find Average.
To calculate the average of 20 input numbers in a C++ program, you can follow this algorithm: Start by initializing a sum variable to 0. Use a loop to read 20 numbers from the user. With each iteration of the loop, add the current number to the sum variable. After the loop finishes, divide the sum by 20 to find the average. Output the average to the user. This method ensures you consider each input value only once and allows for a dynamic calculation of average numbers.