00569, Cindy, 40, 40, 40 ,38, 40, 40, 20, 25, 25, 10, 8, 9, 8, 8, 7, 8, 66, 82, 92
00580, Melina, 40, 39, 38, 40, 37, 40, 25, 25, 25, 10, 9, 9, 9, 8, 9, 70, 83, 93

The data contain the ID, name, scores of projects, quizzes, exercises, mid and final terms. I have to add up all scores for every student by first counting the percentage of each element of scoring and then assign a letter grade like A, B, and etc. Then i have to...

Yes, I've been working on my assignment (If this is not allowed, then I won't be asking questions anymore).
Well, to be frank, I haven't been able to compute the final score since I'm still trying to find a way to target a specific column. For example, the mid-test scores are at column 20 and final-test scores at 21 and I have to add them in to get the overall score of each student. Below is what I had in mind:

[CODE=perl]$mid...

Dear All,

I am new to perl. I need your help with processing the grade.dat file. I have a file containing a list of students with their varying scores from different type of assignments and tests. I have calculated the final grade and need to know the score distribution in a simple histogram like this:
78 xxxxxxx
79 xxxxxxxx
80 xxxxx
81 xxx
where x indicates the number of students gaining the score...