we found that the student names with marks in a text file the marks decreases significantly. when exams conducted fast 4 times.The first column is the student name and the second column is marks in tests.What we need to find is which student marks decreases most often that is 3 times or 4 times. Lets take top N(=10).Those are good students if the marks decreases next time again. Then in the next step we can find what was their average % decreased. Then take top 5 of those and write their names in a text file.
If you are facing any programming issue, such as compilation errors or not able to find the code you are looking for.
Ask your questions, our development team will try to give answers to your questions.