[SOLVED]Help with first c++ program (math-related)
Well, this is my first c++ program assignment.
I was pretty proud of myself after I finished it but I'm having a small problem.
This program is designed to output a few weighted grades from a set of 4 scores.
The quizzes need to be weighted at 30% and the tests weighted at 70%
It's set up, and I think it runs just fine, but my problem is, my weighted scores are not the same as the example's is
The sample output is
Quote:
How many student you want to process: 1
Enter next student’s name: Doug Talbert
Enter quiz 1 quiz 2 test 1 and test 2 scores of Doug Talbert: 93 96 99 97
Name: Doug Talbert
Quiz: 27
Test: 67
Total: 94
Grade: A
Here is my output
Quote:
How many student you want to process: 1
Enter next student’s name: Doug Talbert
Enter quiz 1 quiz 2 test 1 and test 2 scores of Doug Talbert: 93 96 99 97
Name: Doug Talbert
Quiz: 28.35
Test: 68.6
Total: 96
Grade: A
http://img571.imageshack.us/img571/379/problemeu.jpg
As you can see, I'm not getting exactly what I should.
Also, I have one more problem, how do I get rid of those pesky decimals :P
Code:
/*****************************\
* *
* 9/30/2010 *
* Programming Assignment 1 *
\*****************************/
#include <iostream>
#include <cmath>
#include <string>
#include <iomanip>
using namespace std;
int main(){
int totalquiz,totaltest,total,students,quiz1,quiz2,test1,test2;
char grade;
char name[21];
cout << "How many student you want to process: ";
cin >> students;
cout << endl;
if (students >=1){
if (students<=50){
while (students){
cin.ignore();
cout << "Enter next student's name: ";
cin.getline (name,21);
cout << endl;
cout << "Enter quiz 1 quiz 2 test 1 and test 2 scores of " << name << " ";
cin >> quiz1 >> quiz2 >> test1 >> test2;
totalquiz = (quiz1+quiz2) / 2 * .3 ;
totaltest = (test1+test2) / 2 * .7 ;
total = totalquiz + totaltest;
if (total >= 90)
grade = 'A';
else if (total >= 80)
grade = 'B';
else if (total >= 70)
grade = 'C';
else if (total >= 60)
grade = 'D';
else if (total < 60)
grade = 'F';
cout << endl;
cout << setw(15) << "Name:" << setw(21) << name << endl;
cout << setw(15) << "Quiz:" << setw(21) << totalquiz << endl;
cout << setw(15) << "Test:" << setw(21) << totaltest << endl;
cout << setw(16) << "Total:" << setw(20) << total << endl;
cout << setw(16) << "Grade:" << setw(19) << grade << endl << endl;
students--;
}
}
else{
cout << "Number of students must be 50 or less, please try again\n";
return 0;}
}
else{
cout << "Number of students must be a number over 0, please try again\n";
return 0;}
}
