Thread: Need some moderate!

hi,GUYS!
i have a problem with this c++ coding........
why i have an error when i compile it?
and why it didn't give me the correct output?
as such PISAS=ISAS/100*30
if let say, ISAS is 50/100*30..... it should store the output of 15 in the PISAS Variable. why it didn't? plsssss help...urgent!!!


here is the code!!!




#include<iostream.h>
void main()

{
Char cReply;
Char Studentname;
int MT1; int PMT1;
int ISAS; int PISAS;
int MT2; int PMT2;
int PROJECT; int PPROJECT;
int 100=100; int 30=30;
do
{
cout<<"Enter Student Name";
cin>>Studentname;
cout<<"Enter MT1 Marks";
cin>>MT1;
cout<<"Enter ISAS Marks";
cin>>ISAS;
cout<<"Enter MT2 Marks";
cin>>MT2;
cout<<"Enter PROJECT Marks";
cin>>PROJECT;
PMT1=MT1/100*30;
cout<<"The Percentage of MT1 is"<<PMT1<<endl;
PISAS=ISAS/100*30;
cout<<"The Percentage of ISAS is"<<PISAS<<endl;
PMT2=MT2/100*30;
cout<<"The Percentage of MT2 is"<<PMT2<<endl;
PPROJECT=PROJECT/100*30;
cout<<"The Percentage of Project is"<<PPROJECT<<endl;
cout<<"Do you want to input another Student(y/n)";
cin>>cReply;
}while(cReply! > 'n' && cReply != 'N' );
}

>int 100=100; int 30=30;

Invalid variable names.

>Char cReply;

As far as I know, Char is not a standard C++ type.

>PMT1=MT1/100*30;

Using division on integer-variables is riskfull because of round-off errors.

BTW, how can you get compile-errors and run your program? Which compiler do you use?

i am using Microsoft visual studio C++. i thought this is a very easy program but why i got the error? Can anyone here help me with this program? just correct it for me....... i just wanna to see the output of it.
is there anything i could do? change the Int to float. is it?
In Need this code!!! help

Your way of calculating percentages is wrong. If T is the total of marks and N is a number of marks, then the percentage is

P = N / T * 100

Note that you can't assign a string to a char, you should use type string for that. This worked for me, I use C++Builder.

Code:

#include <iostream>

using namespace std;

int main()
{
    char cReply;
    string Studentname;
    int MT1, PMT1, ISAS, PISAS, MT2, PMT2, PROJECT, PPROJECT;
    int TotalMarks;

    do
    {
        cout << "Enter Student Name ";
        cin >> Studentname;
        cout << "Enter MT1 Marks ";
        cin >> MT1;
        cout << "Enter ISAS Marks ";
        cin >> ISAS;
        cout << "Enter MT2 Marks ";
        cin >> MT2;
        cout << "Enter PROJECT Marks ";
        cin >> PROJECT;
        
        TotalMarks = MT1 + ISAS + MT2 + PROJECT;
        
        PMT1 = float (MT1) / float (TotalMarks) * 100;
        cout << "The Percentage of MT1 is " << PMT1 << endl;
        PISAS = float (ISAS) / float (TotalMarks) * 100;
        cout << "The Percentage of ISAS is "<< PISAS << endl;
        PMT2 = float (MT2) / float (TotalMarks) * 100;
        cout << "The Percentage of MT2 is "<< PMT2 << endl;
        PPROJECT = float (PROJECT) / float (TotalMarks) * 100;
        cout << "The Percentage of Project is " << PPROJECT << endl;
        cout << "Do you want to input another Student(y/n) ";
        cin >> cReply;
    }
    while (cReply != 'n' && cReply != 'N');
    
    return 0;
}

are they anyone who can help me solving this programming problem for me? i am looking forward it...... thanks !