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Array or String Comparing Assignment
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I am attempting to write a C++ program that has the results of a T/F test. It takes the information from a data file and then it compares the students answers to the correct answers. I have two problems. First the data file has the first 8 characters as the Student ID(Letters and Numbers), then it has a blank space followed by the student answers. Can someone give me some ideas about how I would maybe use strcmp or would I use a method of comparing Arrays?The output would be the student ID followed by the student answers and then a Grade.
I just need help getting started in the right direction. So far my ideas have been bad...
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Join Date: Feb 2005
Posts: 199
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Solved Threads: 14
Junior Poster
By sounds of things you've sort of headed in the right direction with strcmp, and your ideas may not be as bad as you think. Give us an example of what you've come up with so far and take if from there.
Remember to enclose code using code tags.
Remember to enclose code using code tags.
This is a start to what I had in mind:
/* Preprocessor Directives: ********************************************************/
#include <iostream>
#include <fstream>
#include <iomanip>
#include <cstring>
using namespace std;
/* Begin Main *********************************************************/
int main()
{
char a[21]={'T','F','F','T','F','F','T','T','T','T','F','F',
'T','F','T','F','T','F','T','\0'};
char str[30];
ifstream inFile;
inFile.open ("grades.dat.c_str");
if (!inFile)
{
cout << "Could not open file.\n";
return 1;
}
while (inFile)
{
cin.get(str[30]);
strcpy(str, "grades.dat.c_str");
if (strcmp (a[0], str[9])<0)
{
cout << strcmp;
}
cout << str[0,1,2,3,4,5,6,7] << endl;
}
inFile.close();
return 0;
}
/* Preprocessor Directives: ********************************************************/
#include <iostream>
#include <fstream>
#include <iomanip>
#include <cstring>
using namespace std;
/* Begin Main *********************************************************/
int main()
{
char a[21]={'T','F','F','T','F','F','T','T','T','T','F','F',
'T','F','T','F','T','F','T','\0'};
char str[30];
ifstream inFile;
inFile.open ("grades.dat.c_str");
if (!inFile)
{
cout << "Could not open file.\n";
return 1;
}
while (inFile)
{
cin.get(str[30]);
strcpy(str, "grades.dat.c_str");
if (strcmp (a[0], str[9])<0)
{
cout << strcmp;
}
cout << str[0,1,2,3,4,5,6,7] << endl;
}
inFile.close();
return 0;
}
An example of the input file would be:
ABC54301 TFTFTFTT TFTFTFFTTFT
notice that one question would be unanswered in this example and the input starts with the Student ID and seperated only by a space.
ABC54301 TFTFTFTT TFTFTFFTTFT
notice that one question would be unanswered in this example and the input starts with the Student ID and seperated only by a space.
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Join Date: Feb 2005
Posts: 199
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Junior Poster
I gather it will be safe to assume students results will always start at position 10. This is just one example of how it can be done.
There are many variations of this same method and there may even be better ones. Simply, think about the application conceptually (how you would calcuate the result manually) and then code accordingly.
C++ Syntax (Toggle Plain Text)
There are many variations of this same method and there may even be better ones. Simply, think about the application conceptually (how you would calcuate the result manually) and then code accordingly.
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Join Date: Feb 2005
Posts: 199
Reputation:
Solved Threads: 14
Junior Poster
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Originally Posted by klmbrt
I'm not sure I understand the line:
single Ratio = (single (Answer) / single (Pos)) * 100
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Join Date: Feb 2005
Posts: 199
Reputation:
Solved Threads: 14
Junior Poster
single, double, float, int, short, long are all type specifiers so in the example
The specifier single tells the complier Ratio is a single precision value. You may be accustomed to seeing
Most often within a statement block I'll combine the declration with statement
C++ Syntax (Toggle Plain Text)
The specifier single tells the complier Ratio is a single precision value. You may be accustomed to seeing
C++ Syntax (Toggle Plain Text)
Most often within a statement block I'll combine the declration with statement
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