C programming. Beginner level. Input from the user. Write a C program to read name and marks of n number of students from user (use Dynamic memory allocation) and store them in a file. If the file previously exits, add(append) the information of n students.

Example:

Enter the name of text file: students.txt

Enter number of students (n): 5

Enter 5 records (NAME SCORE):

NAME_1 100

NAME_2 98

NAME_3 80

NAME_4 80

NAME_5 75

Expected output of students.txt

NAME SCORE

==============

NAME_1 100

NAME_2 98

NAME_3 80

NAME_4 80

NAME_5 75