Create a C program that prompts the users to enter test scor

Create a C++ program that prompts the users to enter test scores. The program continue until user enter -1 to stop the program. The program then displays: the number of the tests entered, the total of the test points, and the average of the test scores. Create a C++ program that write 4 of your classmates\' name to a file named \"friends.txt\". First, Open an output file - \"friends.txt\", get the names of 4 friends, then write the names to the file. Close the file. Create a C++ program that prompt the user to enter his/her first name. Then the program asks the user to enter his/her last name. The program then display the full name of this person. Create a C++ program that simulate rolling a die 100 times. The program displays the tally of the how many times for each number. For example: 16 times 20 times

Solution

#include <iostream>
using namespace std;
int main()
{
   int temp;
   int count=0;
   int sum=0;
   while(true)
   {
       cout<<\"Enter a test score(-1 to quit):\";
       cin>>temp;
       if(temp==-1){break;}
       sum = sum+temp;
       count++;
   }
   cout<<\"The number of test scores is \"<<count<<endl;
   cout<<\"The sum of all test scores is \"<<sum<<endl;
   cout<<\"The average of all test scores is \"<<(sum*1.0)/count<<endl;

   return 0;
}