for loops

I'm having trouble incorporating this for loop:

Code:

---


        double sum;
        for (int row= 0; row < i; row ++)
        {
                cout << Names[row] << "    ";
                int col=0;
                for (col= 0; col < num; col ++)
                        cout << Scores[row][col] << "  ";
                cout << "\n";
        }

---

Into this one:

Code:

---

cout << fixed << showpoint << setprecision (2);
        for (int row =0; row < i; row++) //For each student, calculate the average score. Average for each row.
        {
                sum= 0;
                for (int col =0; col < num; col++)
                        sum= sum + Scores[row][col];

                AvgStudentScore[row]= (float) sum/num;
       
                if (AvgStudentScore [row] > 90)
                        Grade[row]= 'A';

                else if (AvgStudentScore [row] > 80)
                        Grade[row]= 'B';

                else if (AvgStudentScore [row] > 67.5)
                        Grade[row]= 'C';

                else if (AvgStudentScore [row] > 55)
                        Grade[row]= 'D';

                else
                        Grade[row]= 'F';

                cout << "* " << AvgStudentScore[row] << "  " << Grade[row] << "\n";
        }

---

I tried this:

Code:

---

double sum;
        cout << fixed << showpoint << setprecision (2);
        for (int row= 0; row < i; row ++)
        {
                cout << Names[row] << "    ";
                sum=0;
                int col=0;
                for (col= 0; col < num; col ++)
                        cout << Scores[row][col] << "  ";
                sum= sum + Scores[row][col];
                cout << "\n";
                AvgStudentScore[row]= (float) sum/num;

                if (AvgStudentScore [row] > 90)
                        Grade[row]= 'A';

                else if (AvgStudentScore [row] > 80)
                        Grade[row]= 'B';

                else if (AvgStudentScore [row] > 67.5)
                        Grade[row]= 'C';

                else if (AvgStudentScore [row] > 55)
                        Grade[row]= 'D';

                else
                        Grade[row]= 'F';

                cout << "* " << AvgStudentScore[row] << "  " << Grade[row] << "\n";
        }

---

But the final code does not give me the results I am looking for. The average given by the last code is very very strange. Note, that when I have both for loops (first two loops) I do get the correct results (average), however, the results do not show up where they are supposed to be, which is, next to other data that I have in my program.

Any ideas anyone?

How in the world do you cut and paste and lose your braces? Edit: I guess you didn't lose your braces so much as delete one of your for loops (note originally you had four, now you have two, and you merged one -- the row one -- fine).

Are you saying I still need to use all for loops even after merging?

Consider the line

Code:

---

sum= sum + Scores[row][col];

---

Before: in a for loop. After: not in a for loop. There's nothing wrong with merging (in fact I would recommend that you do so), but you can't change things.

Great! Thanks for pointing that out. I was in fact missing the sum formula inside the for loop and needed curly braces for that as well.