Question

need help!! c++

HW_6b - Calculate the average Use a do-while loop Write a program that first prompts the user for an upper limit: Enter the number of entries: 5 € (user enters 5) After the user enters a number, the program should prompt the user to enter that many numbers. For example, if the user enters 5, then the program will ask the user to enter 5 values. Use a do-while loop to add the numbers. o With each iteration, one number is entered by the user and then it's added to the sum. After all numbers have been added, calculate the average by dividing the sum by the number of values that were added. Display the sum and the average 6 Format the output to two decimal places to the right of the decimal point /* OUTPUT: Enter the upper limit: Enter 5 numbers: 5 Enter a number: 2 Enter a number: 4 Enter a number: 6 Enter a number: 8 Enter a number: 9 The sum of all numbers from 0 to 5 equals 29.00. The average equals 5.80.

Answer 1

Solution :

#include<iostream>
#include <iomanip>
using namespace std;

int main() {
  
   double sum;
   double number;
   int n;
  
   cout << "Enter the upper limit: ";
   cin >> n;
   cout << "Enter " << n << " numbers: " << endl << endl;
   int i = n;
  
   do {
       cout << "Enter a number: ";
       cin >> number;
       sum += (double)number;
       n--;
   } while(n > 0);
  
   double avg = sum/i;
  
   cout << fixed << setprecision(2);
   cout << "The sum of all numbers from 0 to " << i << " equals " << sum << "." << endl;
   cout << "The average equals " << avg << ".";
   return 0;
}

Screenshot :

DIY C:\Users\USER\Documents\New folder onlyC++.cpp - [Executing] - Dev-C++ 5.11 File Edit Search View Project Execute Tools AStyle Window Help HA A A A ch TDM-GCC 4.9.2 JU (globals) C:\Users\USER\Documents\New folder onlyC++.exe Enter the upper limit: 5 Enter 5 numbers: Enter a number: Enter a number: Enter a number: 6 Enter a number: 8 Enter a number: 9 The sum of all numbers from 0 to 5 equals 29.00. The average equals 5.80. Process exited after 9.569 seconds with return value o Press any key to continue Project Classes [*] onlyC++.cpp 1 #include<iostream> 2 #include <iomanip> 3 using namespace std; 49 int main() { 5 double sum; 6 double number; 7 int n; 8 cout << "Enter the upper limit: 9 cin >>n; 10 cout << "Enter" «< n << " numbers: " << endl << endl; 11 int i = n; 12 do { 13 cout << "Enter a number: "; 14 cin >> number; 15 sum += (double) number; 16 n--; 17 } while(n > 0); 18 double avg = sum/i; 19 cout << fixed << setprecision(2); 20 cout << "The sum of all numbers from to " << i << " equals 21 cout << "The average equals " << avg << "."; 22 return; 23 << sum << "." << endl; به :: Compiler Resources dh Compile Log ✓ Debug Find Results Close Abort Compilation Output Size: 1.304030418396 MiB Compilation Time: 0.553 Line: 18 Col: 24 Sel: 0 Lines: 23 Length: 559 Insert Done parsing in 0 seconds C DEV C++ UT 1:32 AM 7/12/2020